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	<wkhf5qymn4.wl@FREYA.hmp.sony.co.jp>
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Date: Sat, 04 Nov 2000 00:21:00 +0900
From: Hiroki Sato <hrs@eos.ocn.ne.jp>
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Subject: [doc-jp 7792] Re: FreeBSD Security Advisory:
 FreeBSD-SA-00:62.top
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$B:4F#!wEl5~M}2JBg3X$G$9!#(B

 $B;XE&ItJ,$K=$@5$r2C$($^$7$?$N$G!"(B
 $B8x3+8uJd$r$D$1$F$*$-$^$9!#(B

Hori Masato <mho@pobox.com> wrote
   in <wkhf5qymn4.wl@FREYA.hmp.sony.co.jp>:

> runs with increased priviledges
> 
> $B$r$"$($FLu=P$9$k$J$i(B
> 
> kmem $B%0%k!<%W$K8"8B$r>e$2$F<B9T$5$l$^$9(B.
> 
> $B$G$7$g$&$+!#$A$g$C$HF|K\8l$,$3$J$l$F$$$^$;$s!#$9$_$^$;$s!#(B

 $B$A$g$$$H(B increased $B$rF~$l$?I=8=$KJQ$($F$_$^$7$?!#(B

> $B!V%m!<%+%k%f!<%6$,!W$NJ}$,DL$j$,$$$$$h$&$J5$$,$7$^$9!#(B

 $B$3$C$A$O!":#$^$G$b!V$O!W$G$H$*$7$F$-$F$7$^$C$F$$$k$N$G(B
 $B$H$j$"$($:$=$N$^$^$G$9!#(B

  # $B$I$l$rA*$s$G$b!"$"$s$^$j$7$C$/$j(B
  # $B$3$J$$$s$G$9$h$M!"$3$3$i$X$s!#(B

--
| $B:4F#(B $B9-@8!wEl5~M}2JBg3X(B <hrs@eos.ocn.ne.jp>
|
| sato@sekine00.ee.noda.sut.ac.jp (UNIV)
| hrs@FreeBSD.org (FreeBSD Project)



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 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-00:58.chpass
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Mon, 30 Oct 2000 15:11:53 -0800 (PST)
  Message-Id: <20001030231153.B618B37B4CF@hub.freebsd.org>
  X-Sequence: announce-jp 576

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)

=============================================================================
FreeBSD-SA-00:58                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	chpass family contains local root vulnerability

$BJ,N`(B:		core
$B%b%8%e!<%k(B:	chfn/chpass/chsh/ypchfn/ypchpass/ypchsh/passwd
$B9pCNF|(B:		2000-10-30
$B%/%l%8%C%H(B:	$B$3$NLdBj$OFbIt%;%-%e%j%F%#4F::Cf$K=$@5$5$l$^$7$?(B.
		$B<eE@$O(B caddis <caddis@DISSENSION.NET> $B$N;XE&$K$h$k$b$N$G$9(B.
$B1F6AHO0O(B:	FreeBSD 3.x ($B$9$Y$F$N%j%j!<%9(B), FreeBSD 4.0-RELEASE,
		$B=$@5F|A0$N(B FreeBSD 4.0-STABLE
$B=$@5F|(B:		2000/07/20 (FreeBSD 4.0-STABLE)
		2000/10/04 (FreeBSD 3.5.1-STABLE)
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

chfn, chpass, chsh $B$O%f!<%6$N(B finger $B>pJs(B, $B%Q%9%o!<%I(B, $B%m%0%$%s%7%'%k$r(B
$BJQ99$9$k$?$a$N%f!<%F%#%j%F%#$G$9(B.  $B$^$?(B, yp* $B$H$$$&L>A0$N$b$N(B ($BLuCm(B: ypchfn
$B$J$I(B) $B$O(B, NIS $B%"%+%&%s%H$KBP$7$FF1MM$N5!G=$rDs6!$7$^$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

2000 $BG/(B 7 $B7n$K9T$J$o$l$?(B FreeBSD $BFbIt%3!<%I$N%;%-%e%j%F%#4F::$G(B,
vipw $B%f!<%F%#%j%F%#$K;H$o$l$F$$$k%3!<%ICf$K!V=q<0;XDjJ8;zNs$K5/0x$9$k(B
$B%;%-%e%j%F%#>e$N<eE@!W$,H/8+$5$l$^$7$?(B.  vipw $B%f!<%F%#%j%F%#$O(B
$B9b$$8"8B$G<B9T$5$l$J$$$?$a(B, $B$=$N;~E@$G$O%;%-%e%j%F%#>e$N<eE@$K$O(B
$B$J$i$J$$$@$m$&$H9M$($i$l$F$$$?$N$G$9$,(B, $B$3$N%3!<%I$,B>$N%f!<%F%#%j%F%#(B,
chfn, chpass, chsh, ypchfn, ypchpass, ypchsh $B$*$h$S(B passwd $B$N4V$G(B
$B6&M-$5$l$F$$$k$H$$$&E@$,8+Mn$H$5$l$F$$$^$7$?(B.  $B$3$l$i$N(B
$B%f!<%F%#%j%F%#$O(B root $B%f!<%6$K(B setuid $B$5$l$F<B9T$5$l$^$9(B.

$B$7$?$,$C$F$3$N%;%-%e%j%F%#>e$N<eE@$O(B, $B9b$$8"8B$r;}$?$J$$(B
$B%m!<%+%k%f!<%6$K$h$C$F(B, $B%m!<%+%k%^%7%s>e$N(B root $B%"%/%;%9$rF@$k$?$a$K(B
$B0-MQ$5$l$k4m81@-$,$"$j$^$9(B.

FreeBSD 4.0 $B$H(B 3.5.1 $B$r4^$`(B, $B=$@5F|0JA0$N$9$Y$F$N%P!<%8%g%s$N(B
FreeBSD $B$,$3$N%;%-%e%j%F%#>e$N<eE@$N1F6A$r<u$1$^$9(B.
$BLdBjE@$N=$@5$O(B FreeBSD 4.1 $B$N8x3+A0$N(B 4.x $B%V%i%s%A$G9T$J$o$l$^$7$?(B.

III. $B1F6AHO0O(B - Impact

$B%m!<%+%k%f!<%6$O%m!<%+%k%^%7%s$N(B root $B8"8B$rF@$k$3$H$,$G$-$^$9(B.

IV.  $B2sHrJ}K!(B - Workaround

$B0J2<$N%f!<%F%#%j%F%#$+$i(B, setuid $B%S%C%H$r:o=|$7$F$/$@$5$$(B.
$B$3$l$K$h$j(B, root $B%f!<%60J30$N%f!<%6$,(B finger $B>pJs$d%Q%9%o!<%I(B,
$B%m%0%$%s%7%'%k$rJQ99$G$-$J$/$J$k$H$$$&I{:nMQ$,$"$j$^$9(B.

# chflags noschg /usr/bin/chfn /usr/bin/chpass /usr/bin/chsh
# chmod u-s /usr/bin/chfn /usr/bin/chpass /usr/bin/chsh
# chflags noschg /usr/bin/ypchfn /usr/bin/ypchpass /usr/bin/ypchsh
# chmod u-s /usr/bin/ypchfn /usr/bin/ypchpass /usr/bin/ypchsh
# chflags noschg /usr/bin/passwd
# chmod u-s /usr/bin/passwd

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) $B<eE@$r;}$C$?(B FreeBSD $B%7%9%F%`$r(B, $B=$@5F|0J9_$N(B
   4.1-RELEASE, 4.1.1-STABLE $B$b$7$/$O(B 3.5.1-STABLE $B$K%"%C%W%0%l!<%I$7$^$9(B.

2) $B2<$N=$@5%Q%C%A$rE,MQ$7(B, $B3F%U%!%$%k$r:F9=C[$7$F$/$@$5$$(B.

$B$3$N4+9p$r%U%!%$%k$KJ]B8$9$k$+(B, $B=$@5%Q%C%A$H(B PGP $B=pL>$r0J2<$N>l=j$+$i(B
$B%@%&%s%m!<%I$7(B, PGP $B%f!<%F%#%j%F%#$r;H$C$F=pL>$r3NG'$7$^$9(B.

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:58/vipw.patch
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:58/vipw.patch.asc

root $B8"8B$G<!$N%3%^%s%I$r<B9T$7$^$9(B.

# cd /usr/src/usr.sbin/vipw
# patch -p < /path/to/patch_or_advisory
# make depend && make all install
# cd /usr/src/usr.bin/chpass/
# make depend && make all install
# cd /usr/src/usr.bin/passwd/
# make depend && make all install

$B<eE@$r;}$C$?%7%9%F%`MQ$N=$@5%Q%C%A(B:

    --- pw_util.c   1999/08/28 01:20:31     1.17
    +++ pw_util.c   2000/07/12 00:49:40     1.18
    @@ -250,7 +250,7 @@
            extern int _use_yp;
     #endif /* YP */
            if (err)
    -               warn(name);
    +               warn("%s", name);
     #ifdef YP
            if (_use_yp)
                    warnx("NIS information unchanged");


$hrs: FreeBSD-SA/00:58,v 1.3 2000/11/03 15:13:29 hrs Exp $

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 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Ports Security Advisory: FreeBSD-SA-00:59.pine
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Mon, 30 Oct 2000 15:12:19 -0800 (PST)
  Message-Id: <20001030231219.7039437B683@hub.freebsd.org>
  X-Sequence: announce-jp 577

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)

=============================================================================
FreeBSD-SA-00:59                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	pine4 port contains remote vulnerability

$BJ,N`(B:		ports
$B%b%8%e!<%k(B:	pine4/pine4-ssl/zh-pine4/iw-pine4
$B9pCNF|(B:		2000-10-30
$B1F6AHO0O(B:	Ports Collection
$B=$@5F|(B:		2000-10-29
$B%/%l%8%C%H(B:	arkane@SPEAKEASY.ORG
$B%Y%s%@$NBP1~(B:	$BO"Mm:Q$_(B
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

Pine $B$O?M5$$N$"$k%a!<%k%f!<%6%(!<%8%'%s%H$G$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

pine4 port $B$N%P!<%8%g%s(B 4.21 $B$H$=$l0JA0$N$b$N$K$O(B, $B%j%b!<%H$N%f!<%6$,(B
$BFC<l$JEE;R%a!<%k%a%C%;!<%8$rAwIU$9$k$3$H$G(B, $B<u$1<j$N%m!<%+%k%/%i%$%"%s%H>e$G(B
$BG$0U$N%3!<%I$r<B9T$G$-$k$h$&$J%;%-%e%j%F%#>e$N<eE@$,B8:_$7$^$9(B.
$B$3$l$O3+$$$F$$$k%U%)%k%@$N?7Ce%a!<%k$rDj4|E*$K%A%'%C%/$9$k:]$K(B
$B%P%C%U%!%*!<%P%U%m!<$,H/@8$9$k$3$H$,860x$G$9(B.

pine4 $B$N(B port $B$O%G%U%)%k%H$G%$%s%9%H!<%k$5$l$k$b$N$G$O$J$/(B,
$B!V(BFreeBSD $B%7%9%F%`$N0lIt!W$r9=@.$9$k$b$N$G$b$"$j$^$;$s(B.
$B$=$l$i$O(B 4000 $B$r1[$($k%5!<%I%Q!<%F%#@=%"%W%j%1!<%7%g%s$,$9$0$K(B
$B%$%s%9%H!<%k$G$-$k7A$G<}$a$i$l$F$$$k(B FreeBSD Ports Collection $B$N0lIt$G$9(B.
$B%j%j!<%98e$KLdBj$,8+$D$+$C$?$?$a(B, FreeBSD 4.1.1 $B$*$h$S(B 3.5.1 $B$H$H$b$K(B
$B=P2Y$5$l$?(B Ports Collection $B$O$3$NLdBj$r4^$s$G$$$^$9(B.

FreeBSD $B$G$O(B, $B$3$N$h$&$J%5!<%I%Q!<%F%#@=%"%W%j%1!<%7%g%s$N%;%-%e%j%F%#(B
$BLdBj$KBP$7$F(B, $BFC$K2?$+$r<gD%$9$k$3$H$O$"$j$^$;$s(B ($BLuCm(B: Ports Collection $B$K(B
$BF~$C$F$$$k$+$i$H$$$C$F(B, FreeBSD $B$N3+H/<T$?$A$,$=$N%"%W%j%1!<%7%g%s$,(B
$B0BA4$G$"$k$HI>2A$7$?$o$1$G$O$"$j$^$;$s(B).  $B$?$@$7(B, $B%;%-%e%j%F%#LdBj$KBP$7$F(B
$BBg$-$J1F6A$r;}$D$h$&$J(B ports $B$KBP$9$k%;%-%e%j%F%#4F::$rDs6!$9$Y$/(B,
$B8=:_EXNOCf$G$9(B.

$B%7%9%F%`4IM}<T$O(B, Pine $B$O2a5n$K$bIQHK$K%;%-%e%j%F%#%[!<%k$,(B
$BH/8+$5$l$F$$$k$3$H(B, $B$=$7$F%;%-%e%j%F%#>e$N<eE@$K7k$SIU$/$h$&$J(B
$BJ8;zNsA`:n%k!<%A%s$,FbIt$N$$$?$k$H$3$m$G9-$/;H$o$l$F$$$k$3$H$K(B
$BCm0U$9$Y$-$G$9(B.  FreeBSD $B%;%-%e%j%F%#%*%U%#%5$O(B, $B$3$N%=%U%H%&%'%"$K$O(B
$BB>$K$b%;%-%e%j%F%#>e$N<eE@$,B8:_$9$k$@$m$&$H9M$($F$*$j(B, $B?.Mj$G$-$J$$(B
$BAw?.85$+$i$NEE;R%a!<%k$r<u$1<h$k2DG=@-$,$"$k4D6-$G$O(B, $BB>$N%a!<%k(B
$B%=%U%H%&%'%"$NMxMQ$r?d>)$7$F$$$^$9(B.

III. $B1F6AHO0O(B - Impact

$B%j%b!<%H%f!<%6$O0-0U$r;}$C$?EE;R%a!<%k$rAw?.$9$k$3$H$G(B,
($BLuCm(B: $B<u$1<j$N%m!<%+%k%f!<%6$,(B) $B%a!<%k%U%)%k%@$rJD$8$k:]$K(B
pine4 $B$r%/%i%C%7%e$5$;$k$3$H$,2DG=$G$9(B.
 
pine4 $B$N(B port/package $B$r%$%s%9%H!<%k$7$F$$$J$1$l$P(B,
$B%7%9%F%`$K$3$NLdBj$K$h$k%;%-%e%j%F%#>e$N<eE@$O$"$j$^$;$s(B.

IV.  $B2sHrJ}K!(B - Workaround

pine4 $B$N(B port/package $B$,%$%s%9%H!<%k$5$l$F$$$k>l9g$O(B,
$B$=$l$r%7%9%F%`$+$i:o=|$7$F$/$@$5$$(B. 

pine $B>e$G!V%U%)%k%@$r3+$$$?$^$^$K$7$J$$!W$3$H$G4m81@-$r8:$i$9$3$H$b(B
$B2DG=$G$9$,(B, $B=$@5%Q%C%A$NE,MQ$H%=%U%H%&%'%"$N:F9=C[$r9T$J$o$J$1$l$P(B
$B40A4$K<eE@$r<h$j=|$/$3$H$O$G$-$^$;$s(B.

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) Ports Collection $BA4BN$r%"%C%W%0%l!<%I$7(B, pine4 $B$N(B port $B$r:F9=C[$7$^$9(B.

2) $B8E$$(B ($BLuCm(B: pine4 $B$N(B) package $B$r%7%9%F%`$+$i:o=|$7(B, $B=$@5F|0J9_$K(B
   $B:n@.$5$l$??7$7$$(B package $B$r0J2<$N>l=j$+$i<hF@$7$F%$%s%9%H!<%k$7$^$9(B.

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/mail/pine-4.21_1.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/pine-4.21_1.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/mail/pine-4.21_1.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/pine-4.21_1.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/mail/pine-4.21_1.tgz

$BCm0U(B: $B=$@5HG$N(B package $B$,MxMQ$G$-$k$h$&$K$J$k$^$G?tF|$+$+$k2DG=@-$,$"$j$^$9(B.

3) pine4 port $B$N?7$7$$(B port $B%9%1%k%H%s$r0J2<$N>l=j$+$i%@%&%s%m!<%I$7(B,
   $B$=$l$r;H$C$F(B port $B$r:F9=C[$7$^$9(B.

http://www.freebsd.org/ports/

    [$BLuCm(B] $B86J8$G$O(B listmanager $B$H$J$C$F$$$^$9$,(B, $B8m5-$@$H;W$o$l$^$9(B.

4) $B>e5-(B (3) $B$NA`:n$r<+F0E*$K9T$J$&(B portcheckout $B%f!<%F%#%j%F%#$r;H$$$^$9(B.
   portcheckout $B$N(B port $B$O(B /usr/ports/devel/portcheckout $B$K$"$j$^$9(B.
   $B$^$?(B, portcheckout $B$N(B package $B$,0J2<$N>l=j$+$iF~<j2DG=$G$9(B.

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz

$hrs: FreeBSD-SA/00:59,v 1.3 2000/11/03 15:13:29 hrs Exp $

----Next_Part(Sat_Nov__4_00:20:20_2000_41)--
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Disposition: attachment; filename="00:60"
Content-Transfer-Encoding: 7bit

 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Ports Security Advisory: FreeBSD-SA-00:60.boa
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Mon, 30 Oct 2000 15:12:45 -0800 (PST)
  Message-Id: <20001030231245.1BF7B37B4E5@hub.freebsd.org>
  X-Sequence: announce-jp 578

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)

=============================================================================
FreeBSD-SA-00:60                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	boa web server allows arbitrary file access/execution

$BJ,N`(B:		ports
$B%b%8%e!<%k(B:	boa
$B9pCNF|(B:		2000-10-30
$B%/%l%8%C%H(B:	Lluis Mora <llmora@S21SEC.COM>
$B1F6AHO0O(B:	$B=$@5F|0JA0$N(B Ports Collection
$B=$@5F|(B:		2000-10-07
$B%Y%s%@$NBP1~(B:	$B=$@5HG$,8x3+:Q$_(B
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

boa $B$O9b$$%Q%U%)!<%^%s%9$r;}$C$?%&%'%V%5!<%P$G$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

boa port $B$N%P!<%8%g%s(B 0.92 $B0J9_(B, 0.94.8.3 $B0JA0$N$b$N$K$O(B,
$B%j%b!<%H%f!<%6$,(B document root ($BLuCm(B: $B%&%'%V%5!<%P$,J8=q%U%!%$%k8!:w$N(B
$B%k!<%H$H$7$FMQ$$$k%Q%9$N$3$H(B) $B$N30$KB8:_$9$kG$0U$N%U%!%$%k$r8+$k$3$H$,(B
$B$G$-$k$h$&$J%;%-%e%j%F%#>e$N<eE@$,B8:_$7$^$9(B.  $B$3$N<eE@$O(B,
$B%Q%9$K(B ".." $B$r4^$`(B, URL $B%(%s%3!<%I$5$l$?MW5a$KBP$7$F(B boa $B$,(B
$BE,@Z$J@)8B$r9T$J$o$J$$$H$$$&$b$N$G$9(B.

$B$5$i$K%7%9%F%`4IM}<T$,(B CGI $B3HD%5!G=$N%5%]!<%H$rM-8z2=$7$F$$$k>l9g(B,
.cgi $B$G=*$o$k%U%!%$%k$X$NMW5a$K$h$j(B, $B%&%'%V%5!<%P$r<B9T$7$F$$$k(B
$B%f!<%6$N8"8B$G$=$N%U%!%$%k$,<B9T$5$l$^$9(B.  $B$3$3$G(B .cgi $B%U%!%$%k$,(B
document root $B$N30$KB8:_$7$F$$$k$H$9$l$P(B, $B?.Mj$G$-$J$$%P%$%J%j$d(B
$B%9%/%j%W%H$,<B9T$G$-$k$3$H$K$J$j$^$9(B.  $B$?$H$($P(B anonymous FTP $B$J$I$r(B
$B7PM3$7$F967b<T$,$=$N%7%9%F%`$K%U%!%$%k$r%"%C%W%m!<%I$G$-$k$J$i(B,
$B967b<T$O%&%'%V%5!<%P$r<B9T$7$F$$$k%f!<%6$N8"8B$G(B, $BG$0U$N%3!<%I$r(B
$B<B9T$9$k$3$H$,2DG=$G$9(B.

boa $B$N(B port $B$O%G%U%)%k%H$G%$%s%9%H!<%k$5$l$k$b$N$G$O$J$/(B,
$B!V(BFreeBSD $B%7%9%F%`$N0lIt!W$r9=@.$9$k$b$N$G$b$"$j$^$;$s(B.
$B$=$l$i$O(B 4000 $B$r1[$($k%5!<%I%Q!<%F%#@=%"%W%j%1!<%7%g%s$,$9$0$K(B
$B%$%s%9%H!<%k$G$-$k7A$G<}$a$i$l$F$$$k(B FreeBSD Ports Collection $B$N0lIt$G$9(B.
$B%j%j!<%98e$KLdBj$,8+$D$+$C$?$?$a(B, FreeBSD 3.5.1 $B$*$h$S(B 4.1.1 $B$H$H$b$K(B
$B=P2Y$5$l$?(B Ports Collection $B$O$3$NLdBj$r4^$s$G$$$^$9(B.

FreeBSD $B$G$O(B, $B$3$N$h$&$J%5!<%I%Q!<%F%#@=%"%W%j%1!<%7%g%s$N%;%-%e%j%F%#(B
$BLdBj$KBP$7$F(B, $BFC$K2?$+$r<gD%$9$k$3$H$O$"$j$^$;$s(B ($BLuCm(B: Ports Collection $B$K(B
$BF~$C$F$$$k$+$i$H$$$C$F(B, FreeBSD $B$N3+H/<T$?$A$,$=$N%"%W%j%1!<%7%g%s$,(B
$B0BA4$G$"$k$HI>2A$7$?$o$1$G$O$"$j$^$;$s(B).  $B$?$@$7(B, $B%;%-%e%j%F%#LdBj$KBP$7$F(B
$BBg$-$J1F6A$r;}$D$h$&$J(B ports $B$KBP$9$k%;%-%e%j%F%#4F::$rDs6!$9$Y$/(B,
$B8=:_EXNOCf$G$9(B.

III. $B1F6AHO0O(B - Impact

$B%j%b!<%H%f!<%6$O%7%9%F%`$KB8:_$9$k(B, $B%&%'%V%5!<%P$N%f!<%6%"%+%&%s%H8"8B$G(B
$B%"%/%;%92DG=$J$9$Y$F$N%U%!%$%k$r8+$k$3$H$,$G$-$k2DG=@-$,$"$j$^$9(B.
$B$^$?(B, document root $B$N30$K$"$kG$0U$N%U%!%$%k$r<B9T$9$k$3$H$G(B,
$B%&%'%V%5!<%P$N%f!<%6%"%+%&%s%H$,C%$o$l$k4m81@-$,$"$j$^$9(B.

boa $B$N(B port/package $B$r%$%s%9%H!<%k$7$F$$$J$1$l$P(B,
$B%7%9%F%`$K$3$NLdBj$K$h$k%;%-%e%j%F%#>e$N<eE@$O$"$j$^$;$s(B.

IV.  $B2sHrJ}K!(B - Workaround

boa $B$N(B port/package $B$,%$%s%9%H!<%k$5$l$F$$$k>l9g$O(B,
$B$=$l$r%7%9%F%`$+$i:o=|$7$F$/$@$5$$(B. 

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) Ports Collection $BA4BN$r%"%C%W%0%l!<%I$7(B, boa $B$N(B port $B$r:F9=C[$7$^$9(B.

2) $B8E$$(B ($BLuCm(B: boa $B$N(B) package $B$r%7%9%F%`$+$i:o=|$7(B, $B=$@5F|0J9_$K(B
   $B:n@.$5$l$??7$7$$(B package $B$r0J2<$N>l=j$+$i<hF@$7$F%$%s%9%H!<%k$7$^$9(B.

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/www/boa-0.94.8.3.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/www/boa-0.94.8.3.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/www/boa-0.94.8.3.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/www/boa-0.94.8.3.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/www/boa-0.94.8.3.tgz

3) boa port $B$N?7$7$$(B port $B%9%1%k%H%s$r0J2<$N>l=j$+$i%@%&%s%m!<%I$7(B,
   $B$=$l$r;H$C$F(B port $B$r:F9=C[$7$^$9(B.

http://www.freebsd.org/ports/

    [$BLuCm(B] $B86J8$G$O(B cvsweb $B$H$J$C$F$$$^$9$,(B, $B8m5-$@$H;W$o$l$^$9(B.

4) $B>e5-(B (3) $B$NA`:n$r<+F0E*$K9T$J$&(B portcheckout $B%f!<%F%#%j%F%#$r;H$$$^$9(B.
   portcheckout $B$N(B port $B$O(B /usr/ports/devel/portcheckout $B$K$"$j$^$9(B.
   $B$^$?(B, portcheckout $B$N(B package $B$,0J2<$N>l=j$+$iF~<j2DG=$G$9(B.

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz

$hrs: FreeBSD-SA/00:60,v 1.3 2000/11/03 15:13:29 hrs Exp $

----Next_Part(Sat_Nov__4_00:20:20_2000_41)--
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Disposition: attachment; filename="00:61"
Content-Transfer-Encoding: 7bit

 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-00:61.tcpdump
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Mon, 30 Oct 2000 15:13:11 -0800 (PST)
  Message-Id: <20001030231311.7642A37B680@hub.freebsd.org>
  X-Sequence: announce-jp 579

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)

=============================================================================
FreeBSD-SA-00:61                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	tcpdump contains remote vulnerabilities

$BJ,N`(B:		core
$B%b%8%e!<%k(B:	tcpdump
$B9pCNF|(B:		2000-10-31
$B%/%l%8%C%H(B:	$BFbIt%;%-%e%j%F%#4F::Cf$KH/8+(B
$B1F6AHO0O(B:	FreeBSD 4.2 $B$h$jA0$N$9$Y$F$N(B FreeBSD 3.x, 4.x $B%j%j!<%9(B
                $B=$@5F|0JA0$N(B FreeBSD 3.5.1-STABLE $B$*$h$S(B 4.1.1-STABLE
$B=$@5F|(B:		2000-10-04 (FreeBSD 4.1.1-STABLE)
		2000-10-05 (FreeBSD 3.5.1-STABLE)
$B%Y%s%@$NBP1~(B:	$B=$@5%Q%C%A$,8x3+:Q$_(B
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

tcpdump $B$O%M%C%H%o!<%/$N2TF/>uBV$r%b%K%?%j%s%0$9$k%D!<%k$G$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

$BFbIt%;%-%e%j%F%#4F::$N:](B, FreeBSD $B$K4^$^$l$k(B tcpdump $B$NCf$K(B
$B%P%C%U%!%*!<%P%U%m!<$N4m81@-$r;}$D%P%C%U%!$,H/8+$5$l$^$7$?(B.
$B$=$N$&$A$N$$$/$D$+$O(B, $B%j%b!<%H$N967b<T$,%m!<%+%k$N(B tcpdump $B%W%m%;%9$r(B
$B%/%i%C%7%e$5$;$k$N$KMxMQ2DG=$J$b$N$G$9(B.  $B$^$?(B, FreeBSD 4.0-RELEASE,
4.1-RELEASE $B$*$h$S(B 4.1.1-RELEASE $B$K4^$^$l$F$$$k?7$7$$%P!<%8%g%s$N(B
tcpdump (tcpdump 3.5) $B$K$O(B, AFS ACL $B%Q%1%C%H$N%G%3!<%IItJ,$K(B
$B%j%b!<%H$N967b<T$,%m!<%+%k%7%9%F%`$GG$0U$N%3!<%I$r<B9T(B (tcpdump $B$O(B
root $B8"8B$rMW5a$9$k$?$a(B, $BDL>o$O(B root $B8"8B$G(B) $B$G$-$k$h$&$J(B,
$B$h$j?<9o$J<eE@$,B8:_$7$^$9(B.

$B0l$DL\$NLdBjE@$O(B, tcpdump $B$r;H$C$F?/F~8!CN%7%9%F%`(B (intrusion detection
system) $B$r9=C[$7$F$$$k>l9g$KLdBj$H$J$j$^$9(B.  $B$?$H$($P(B
$B%M%C%H%o!<%/$N2x$7$$5sF0$r%b%K%?%j%s%0$7$F$$$k>l9g(B, $B967b<T$,2TF/Cf$N(B
tcpdump $B%W%m%;%9$r%/%i%C%7%e$5$;$k$H(B, $B$=$N8e$N%M%C%H%o!<%/>uBV$,(B
$B4Q;!$G$-$J$/$J$C$F$7$^$$$^$9(B.

FreeBSD 3.5.1-RELEASE, 4.0-RELEASE, 4.1-RELEASE $B$*$h$S(B 4.1.1-RELEASE $B$r4^$`(B,
$B=$@5F|0JA0$N$9$Y$F$N(B FreeBSD $B%j%j!<%9$K$O!V%j%b!<%H$+$i$N%/%i%C%7%e967b!W$K(B
$BBP$9$k<eE@$,(B, FreeBSD 4.0-RELEASE, 4.1-RELEASE $B$*$h$S(B 4.1.1-RELEASE $B$K$O(B
$B$5$i$K!V%j%b!<%H$+$iG$0U$N%3!<%I$,<B9T$G$-$k!W<eE@$,B8:_$7$^$9(B.
$BLdBjE@$ON>J}$H$b(B, 4.2-RELEASE $B$N%j%j!<%9A0$N(B 4.1.1-STABLE $B$G=$@5$5$l$F$$$^$9(B.

III. $B1F6AHO0O(B - Impact

$B%j%b!<%H%f!<%6$,%m!<%+%k$N(B tcpdump $B%W%m%;%9$r%/%i%C%7%e$5$;$k$3$H$,$G$-$^$9(B.
$B$^$?(B, ($B=$@5F|0JA0$N(B FreeBSD 4.0-RELEASE, 4.1-RELEASE, 4.1.1-RELEASE $B$*$h$S(B
4.1.1-STABLE $B$G$O(B) $B%j%b!<%H%f!<%6$,(B tcpdump $B$r<B9T$7$F$$$k%f!<%6(B ($BDL>o$O(B
root) $B$N8"8B$GG$0U$N%3!<%I$r<B9T$G$-$k2DG=@-$,$"$j$^$9(B.

IV.  $B2sHrJ}K!(B - Workaround

$B<eE@$r;}$C$?%P!<%8%g%s$N(B tcpdump $B$r(B, $B?.Mj$G$-$J$$Aw?.85$+$i$N(B
$B%Q%1%C%H$,4^$^$l$k2DG=@-$N$"$k%M%C%H%o!<%/4D6-$G;HMQ$7$J$$$G$/$@$5$$(B.

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) $B<eE@$r;}$C$?(B FreeBSD $B%7%9%F%`$r(B, $B=$@5F|0J9_$N(B
   4.1.1-STABLE $B$b$7$/$O(B 3.5.1-STABLE $B$K%"%C%W%0%l!<%I$7$^$9(B.

2a) $B=$@5F|0JA0$N(B FreeBSD 3.x $B%7%9%F%`$N>l9g(B

$B=$@5%Q%C%A$H(B PGP $B=pL>$r0J2<$N>l=j$+$i%@%&%s%m!<%I$7(B,
PGP $B%f!<%F%#%j%F%#$r;H$C$F=pL>$r3NG'$7$F$/$@$5$$(B.

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:61/tcpdump-3.x.patch
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:61/tcpdump-3.x.patch.asc

# cd /usr/src/contrib/tcpdump
# patch -p < /path/to/patch
# cd /usr/src/usr.sbin/tcpdump
# make depend && make all install

2b) $B=$@5F|0JA0$N(B FreeBSD 4.x $B%7%9%F%`$N>l9g(B

$B=$@5%Q%C%A$H(B PGP $B=pL>$r0J2<$N>l=j$+$i%@%&%s%m!<%I$7(B,
PGP $B%f!<%F%#%j%F%#$r;H$C$F=pL>$r3NG'$7$F$/$@$5$$(B.

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:61/tcpdump-4.x.patch
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:61/tcpdump-4.x.patch.asc

# cd /usr/src/contrib/tcpdump
# patch -p < /path/to/patch
# cd /usr/src/usr.sbin/tcpdump
# make depend && make all install

$hrs: FreeBSD-SA/00:61,v 1.3 2000/11/03 15:13:29 hrs Exp $

----Next_Part(Sat_Nov__4_00:20:20_2000_41)--
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Disposition: attachment; filename="00:62"
Content-Transfer-Encoding: 7bit

 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: FreeBSD Security Advisory: FreeBSD-SA-00:62.top
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Wed,  1 Nov 2000 14:59:54 -0800 (PST)
  Message-Id: <20001101225954.E5B2C37B479@hub.freebsd.org>
  X-Sequence: 580

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)
=============================================================================
FreeBSD-SA-00:62                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	top allows reading of kernel memory

$BJ,N`(B:		core
$B%b%8%e!<%k(B:	top
$B9pCNF|(B:		2000-11-01
$B%/%l%8%C%H(B:	vort@wiretapped.net $B$,(B OpenBSD $B$GH/8+(B
$B1F6AHO0O(B:	FreeBSD 3.x ($B$9$Y$F$N%j%j!<%9(B),
                FreeBSD 4.x (4.2 $B$h$jA0$N$9$Y$F$N%j%j!<%9(B),
                $B=$@5F|0JA0$N(B FreeBSD 3.5.1-STABLE $B$*$h$S(B 4.1.1-STABLE
$B=$@5F|(B:		2000/10/04 (FreeBSD 4.1.1-STABLE)
                2000/10/04 (FreeBSD 3.5.1-STABLE)
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

top $B$O(B CPU $B$d%a%b%j$N;HMQ>u67$H$$$C$?!"8=:_$N%7%9%F%`%j%=!<%9$NE}7W>pJs$r(B
$BI=<($9$k%f!<%F%#%j%F%#$G$9(B.  top $B$OFbIt$GJ]<i$5$l$F$$$k$b$N$G$O$J$/(B,
$B30It$+$i4sB#$5$l(B, FreeBSD $B$KI8=`$GAH$_9~$^$l$F$$$k%=%U%H%&%'%"$G$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

top(1) $B$K$O(B, $B9b$$8"8B$r;}$?$J$$%m!<%+%k%f!<%6$,(B top $B%W%m%;%9$r(B
$BMxMQ$7$FG$0U$N%3!<%I$r<B9T$G$-$k$h$&$J(B, $B!V=q<0;XDjJ8;zNs$K5/0x$9$k(B
$B%;%-%e%j%F%#>e$N<eE@!W$,H/8+$5$l$F$$$^$9(B.  top $B%f!<%F%#%j%F%#$O(B
$B%+!<%M%k%a%b%j$rFI$_=P$9$3$H$,2DG=(B ($B$?$@$7=q$-9~$_$OIT2D(B) $B$J9b$$8"8B$r(B
$B;}$D(B, kmem $B%0%k!<%W$N8"8B$G<B9T$5$l$^$9(B.  $B%+!<%M%k%a%b%j$rFI$`$3$H$N(B
$B$G$-$k%W%m%;%9$O(B, $B$?$H$($P%M%C%H%o!<%/%H%i%U%#%C%/(B, $B%G%#%9%/%P%C%U%!(B,
$BC<Kv$NI=<(>uBV$H$$$C$?%"%/%;%9$K9b$$8"8B$rI,MW$H$9$k%G!<%?$r(B
$B%b%K%?%j%s%0$9$k$3$H$,$G$-$k$?$a(B, $B%m!<%+%k%7%9%F%`(B, $B$"$k$$$OB>$N(B
$B%7%9%F%`$K$*$$$F(B, $B$=$N>pJs$,(B root $B8"8B$r4^$`(B, $B$5$i$K9b$$8"8B$r(B
$BF@$k$?$a$KMxMQ$5$l$k4m81@-$,$"$j$^$9(B.

FreeBSD 4.0, 4.1, 4.1.1 $B$*$h$S(B 3.5.1 $B$r4^$`(B, $B=$@5F|0JA0$N$9$Y$F$N(B
FreeBSD $B%j%j!<%9$,$3$NLdBj$N1F6A$r<u$1$^$9(B.
$BLdBjE@$N=$@5$O(B FreeBSD 4.2-RELEASE $B$N8x3+A0$N(B 4.1.1-STABLE $B%V%i%s%A$G(B
$B9T$J$o$l$^$7$?(B.


III. $B1F6AHO0O(B - Impact

$B%m!<%+%k%f!<%6$O%+!<%M%k%a%b%j$+$i(B, $B%"%/%;%9$K9b$$8"8B$rI,MW$H$9$k%G!<%?$r(B
$BFI$_=P$9$3$H$,2DG=$G$9(B.  $B%+!<%M%k%a%b%j$+$iFI$_=P$;$k%G!<%?$K$O(B,
$B%m!<%+%k$b$7$/$O%j%b!<%H%7%9%F%`$K$*$$$F(B, $B9b$$%"%/%;%98"8B$rF@$k$?$a$K(B
$BMxMQ$G$-$k$h$&$J>pJs$r4^$s$G$$$k2DG=@-$,$"$j$^$9(B.

IV.  $B2sHrJ}K!(B - Workaround

top $B%f!<%F%#%j%F%#$+$i(B setgid $B%S%C%H$r:o=|$7$F$/$@$5$$(B.  $B$3$l$K$h$j(B,
$B%9!<%Q%f!<%6$H(B kmem $B%0%k!<%W$KB0$7$F$$$k%f!<%60J30$N%f!<%6$O(B
top $B%f!<%F%#%j%F%#$rMxMQ$G$-$J$/$J$k$H$$$&I{:nMQ$,$"$j$^$9(B.

# chmod g-s /usr/bin/top

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) $B<eE@$r;}$C$?(B FreeBSD $B%7%9%F%`$r(B, $B=$@5F|0J9_$N(B
   4.1.1-STABLE $B$b$7$/$O(B 3.5.1-STABLE $B$K%"%C%W%0%l!<%I$7$^$9(B.

2) $B2<$N=$@5%Q%C%A$rE,MQ$7(B, $B4XO"%U%!%$%k$r:F9=C[$7$F$/$@$5$$(B.

$B$3$N4+9p$r%U%!%$%k$KJ]B8$9$k$+(B, $B=$@5%Q%C%A$H(B PGP $B=pL>$r0J2<$N>l=j$+$i(B
$B%@%&%s%m!<%I$7(B, PGP $B%f!<%F%#%j%F%#$r;H$C$F=pL>$r3NG'$7$^$9(B.

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:62/top.patch
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:62/top.patch.asc

root $B8"8B$G<!$N%3%^%s%I$r<B9T$7$^$9(B.

# cd /usr/src/contrib/top
# patch -p < /path/to/patch_or_advisory
# cd /usr/src/usr.bin/top
# make depend && make all install

$B<eE@$r;}$C$?%7%9%F%`MQ$N=$@5%Q%C%A(B:

    Index: display.c
    ===================================================================
    RCS file: /mnt/ncvs/src/contrib/top/display.c,v
    retrieving revision 1.4
    retrieving revision 1.5
    diff -u -r1.4 -r1.5
    --- display.c	1999/01/09 20:20:33	1.4
    +++ display.c	2000/10/04 23:34:16	1.5
    @@ -829,7 +831,7 @@
         register int i;
     
         /* first, format the message */
    -    (void) sprintf(next_msg, msgfmt, a1, a2, a3);
    +    (void) snprintf(next_msg, sizeof(next_msg), msgfmt, a1, a2, a3);
     
         if (msglen > 0)
         {
    Index: top.c
    ===================================================================
    RCS file: /mnt/ncvs/src/contrib/top/top.c,v
    retrieving revision 1.4
    retrieving revision 1.5
    diff -u -r1.4 -r1.5
    --- top.c	1999/01/09 20:20:34	1.4
    +++ top.c	2000/10/04 23:34:16	1.5
    @@ -807,7 +809,7 @@
     				{
     				    if ((errmsg = kill_procs(tempbuf2)) != NULL)
     				    {
    -					new_message(MT_standout, errmsg);
    +					new_message(MT_standout, "%s", errmsg);
     					putchar('\r');
     					no_command = Yes;
     				    }

$hrs: FreeBSD-SA/00:62,v 1.4 2000/11/03 15:19:14 hrs Exp $

----Next_Part(Sat_Nov__4_00:20:20_2000_41)--
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Disposition: attachment; filename="00:63"
Content-Transfer-Encoding: 7bit

 $B$3$N%a!<%k$O(B, announce-jp $B$KN.$l$?(B

  Subject: FreeBSD Security Advisory: FreeBSD-SA-00:63.getnameinfo
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Wed,  1 Nov 2000 15:00:35 -0800 (PST)
  Message-Id: <20001101230035.B57DC37B696@hub.freebsd.org>
  X-Sequence: 581

 $B$rF|K\8lLu$7$?$b$N$G$9(B. 

 $B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
 FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
 $B%_%i!<%5%$%H$rMxMQ$9$k$K$O(B,
 http://www.FreeBSD.org/ $B$r(B http://www.jp.FreeBSD.org/www.freebsd.org/ $B$K(B,
 ftp://ftp.FreeBSD.org/ $B$r(B ftp://ftp.jp.FreeBSD.org/ $B$K(B,
 $B$=$l$>$lCV$-49$($F$/$@$5$$(B.

 $B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
 $B9MN8$9$k$h$&$*4j$$$7$^$9(B.  $B%_%i!<%5%$%H$K4X$9$k>\:Y$O(B

  http://www.FreeBSD.org/handbook/mirror.html ($B1QJ8(B)
  http://www.FreeBSD.org/ja/handbook/mirror.html ($BF|K\8lLu(B)

 $B$K(B, $B$^$?(B, $B2a5n$NF|K\8lHG%;%-%e%j%F%#4+9p$O(B

  http://www.FreeBSD.org/ja/security/

 $B$K$^$H$a$i$l$F$$$^$9(B.

 $B86J8$O(B PGP $B=pL>$5$l$F$$$^$9$,(B, $B$3$NF|K\8lLu$O(B PGP $B=pL>$5$l$F$$$^$;$s(B. 
 $B%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B$N%A%'%C%/$r(B
 $B9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$O(B FreeBSD $BF|K\8l%I%-%e%a%s%F!<%7%g%s%W%m%8%'%/%H(B (doc-jp) $B$,;29M$N(B
 $B$?$a$KDs6!$9$k$b$N$G(B, doc-jp $B$O(B $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b$$$?$7$^$;$s(B.
 $BF|K\8lLu$K$D$$$F$N$*Ld$$9g$o$;$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

--($B$3$3$+$i(B)
=============================================================================
FreeBSD-SA-00:63                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	getnameinfo function allows remote denial of service

$BJ,N`(B:		core
$B%b%8%e!<%k(B:	libc
$B9pCNF|(B:		2000-11-01
$B%/%l%8%C%H(B:	Pavel Kankovsky <peak@argo.troja.mff.cuni.cz>
$B1F6AHO0O(B:	FreeBSD 4.x (4.2 $B$h$jA0$N$9$Y$F$N%j%j!<%9(B),
                $B=$@5F|0JA0$N(B 4.1.1-STABLE
$B=$@5F|(B:		2000/09/25 (FreeBSD 4.1.1-STABLE)
FreeBSD $B$K8GM-$+(B:	NO

I.   $BGX7J(B - Background

getnameinfo() $B4X?t$O(B, KAME $B%W%m%8%'%/%H$N(B
$B%W%m%H%3%kHs0MB8%j%>%k%P%i%$%V%i%j$K4^$^$l$F$$$k$b$N$G$9(B.

II.  $BLdBj$N>\:Y(B - Problem Description

$B$3$N%i%$%V%i%j$N(B DNS $B%[%9%HL>$r=hM}$9$kItJ,$K$O(B, $B%[%9%HL>$N(B
$B%"%I%l%92r7h$r9T$J$&:](B ($B$?$H$($P%5!<%S%9$KBP$9$k@\B3$K(B
$BH?1~$9$k:]$K(B getnameinfo() $B4X?t$,8F$P$l$^$9(B) $B$K(B
$BD9$$(B DNS $B%[%9%HL>$rF~$l$k$3$H$G(B, getnameinfo() $B4X?t$r(B
$B%/%i%C%7%e$5$;$k$3$H$,$G$-$k$h$&$J!V0l$D0c$$!W$N%(%i!<$,B8:_$7$^$9(B. 

 [$BLuCm(B] $B!V0l$D0c$$!W%(%i!<(B ($B86J8(B: off-by-one error) $B$K$D$$$F$O(B
        $BE:IU$N=$@5%Q%C%A$r;2>H$7$F$/$@$5$$(B.

$B$3$N%P%0$O0J2<$N>r7o2<$K$*$$$F(B, $B<eE@$r;}$D%5!<%S%9$KBP$9$k(B
$B%5!<%S%9K832967b$KMxMQ$5$l$k2DG=@-$,$"$j$^$9(B.

* $B967b<T$,<+J,$N(B DNS $B%5!<%P$rA`:n$G$-$k$3$H(B.

* $B%5!<%S%9$,91>oE*$J%G!<%b%s$H$7$F<B9T$5$l$F$$$k$3$H(B ($B$D$^$j(B
  inetd $B$J$I$N4IM}MQ%W%m%;%9$+$iI,MW$K1~$8$F8F$S=P$5$l$k$N$G$O$J$/(B,
  $B!V%9%?%s%I%"%m%s!W$GF0:n$7$F$$$k$3$H(B).

* $B$=$N%G!<%b%s$,(B, $B@\B3$r=hM}$9$k;R%W%m%;%9$r(B fork $B$9$kA0$K(B
  $B%j%b!<%H$N%[%9%HL>$G(B getnameinfo() $B4X?t$r8F$S=P$7$F$$$k$3$H(B
  ($B$b$7$=$&$G$J$1$l$P(B, $BC1$K;R%W%m%;%9$,=*N;$9$k$@$1$G?F%W%m%;%9$O(B
  $B<B9T$5$lB3$1$^$9(B).

* $B$=$N%G!<%b%s$,(B, $B%G!<%b%s$r4F;k$9$kB>$N%W%m%;%9$K$h$C$F<+F0E*$K(B
  $B:F5/F0$5$l$J$$$3$H(B.

FreeBSD 4.0, 4.1, 4.1.1 $B$r4^$`(B, $B=$@5F|0JA0$N$9$Y$F$N(B
FreeBSD 4.x $B%j%j!<%9$,$3$NLdBj$N1F6A$r<u$1$^$9(B.  $BLdBjE@$N=$@5$O(B
FreeBSD 4.2-RELEASE $B$N8x3+A0$N(B 4.1.1-STABLE $B%V%i%s%A$G9T$J$o$l$^$7$?(B.
FreeBSD 3.x $B%V%i%s%A$O(B KAME $B$N%3!<%I$,4^$^$l$F$$$J$$$?$a(B, $B$3$NLdBj$N(B
$B1F6A$O$"$j$^$;$s(B.

$B$?$@$7(B, $B$3$N%;%-%e%j%F%#>e$N<eE@$O(B FreeBSD $B%Y!<%9%7%9%F%`$K4^$^$l$k(B
$B$$$:$l$N%5!<%P%W%m%0%i%`$K$*$$$F$b<eE@$K$O$J$i$J$$$H9M$($i$l$F$$$^$9(B.
$B$3$l$O(B ($B8=;~E@$G$O0l$D$b8+$D$+$C$F$$$^$;$s$,(B) $B>e5-$N>r7o$r$9$Y$F(B
$BK~$?$9$h$&$J%5!<%I%Q!<%F%#@=$N%5!<%P$K$*$$$F$N$_(B, $B@x:_E*$JLdBj$H(B
$B$J$k$b$N$G$"$j(B, $B$[$\$9$Y$F$N(B FreeBSD $B%7%9%F%`$O<B:]$K1F6A$r(B
$B<u$1$J$$$@$m$&$H9M$($i$l$^$9(B.

III. $B1F6AHO0O(B - Impact
 
$B%j%b!<%H%f!<%6$O6K0lIt$N(B ($BLuCm(B: II $B$N>r7o$rK~$?$9(B) $B%M%C%H%o!<%/%5!<%P$K(B
$BBP$7(B, $B0[>o=*N;$r0z$-5/$3$7$F%5!<%S%9ITG=>uBV$K4Y$i$;$k$3$H$,2DG=$G$9(B.

IV.  $B2sHrJ}K!(B - Workaround

$B8=<BE*$J2sHrJ}K!$O$"$j$^$;$s(B.

V.   $B2r7h:v(B - Solution

$B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) $B<eE@$r;}$C$?(B FreeBSD 4.x $B%7%9%F%`$r(B, $B=$@5F|0J9_$N(B
   4.1.1-STABLE $B$K%"%C%W%0%l!<%I$7$^$9(B.

2) $B2<$N=$@5%Q%C%A$rE,MQ$7(B, $B4XO"%U%!%$%k$r:F9=C[$7$F$/$@$5$$(B.

$B$3$N4+9p$r%U%!%$%k$KJ]B8$9$k$+(B, $B=$@5%Q%C%A$H(B PGP $B=pL>$r0J2<$N>l=j$+$i(B
$B%@%&%s%m!<%I$7(B, PGP $B%f!<%F%#%j%F%#$r;H$C$F=pL>$r3NG'$7$^$9(B.

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:63/getnameinfo.patch
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:63/getnameinfo.patch.asc

root $B8"8B$G<!$N%3%^%s%I$r<B9T$7$^$9(B.

# cd /usr/src/lib/libc
# patch -p < /path/to/patch_or_advisory
# make depend && make all install

$B<eE@$r;}$C$?%7%9%F%`MQ$N=$@5%Q%C%A(B:

    --- net/getnameinfo.c	2000/07/05 05:09:17	1.5
    +++ net/getnameinfo.c	2000/09/25 23:04:36	1.6
    @@ -154,12 +153,12 @@
     				(flags & NI_DGRAM) ? "udp" : "tcp");
     		}
     		if (sp) {
    -			if (strlen(sp->s_name) > servlen)
    +			if (strlen(sp->s_name) + 1 > servlen)
     				return ENI_MEMORY;
     			strcpy(serv, sp->s_name);
     		} else {
     			snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
    -			if (strlen(numserv) > servlen)
    +			if (strlen(numserv) + 1 > servlen)
     				return ENI_MEMORY;
     			strcpy(serv, numserv);
     		}
    @@ -253,7 +252,7 @@
     					*p = '\0';
     			}
     #endif
    -			if (strlen(hp->h_name) > hostlen) {
    +			if (strlen(hp->h_name) + 1 > hostlen) {
     				freehostent(hp);
     				return ENI_MEMORY;
     			}
$hrs: FreeBSD-SA/00:63,v 1.3 2000/11/03 15:19:14 hrs Exp $

----Next_Part(Sat_Nov__4_00:20:20_2000_41)----
