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Date: Mon, 10 Jul 2000 23:55:14 +0900
From: Hiroki Sato <hrs@geocities.co.jp>
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Subject: [doc-jp 7520] Re: ANNOUNCE: FreeBSD Security Advisory:
 FreeBSD-SA-00:23.ip-options
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$B:4F#!wEl5~M}2JBg3X$G$9!#(B

 $B%j%V!<%H$H:F5/F0$O$I$C$A$r:N$j$^$7$g$&(B?

Koga Youichirou <y-koga@jp.freebsd.org> wrote
 in <20000710134328.19713.qmail@smtp.246.ne.jp>:

> There are several bugs in the processing of IP options in the FreeBSD
> IP stack, which fail to correctly bounds-check arguments and contain
> other coding errors leading to the possibility of data corruption and
> a kernel panic upon reception of certain invalid IP packets.
> 
> FreeBSD $B$N(B IP $B%9%?%C%/$K$*$1$k(B IP $B%*%W%7%g%s$N=hM}$K$O$$$/$D$+$N%P%0$,(B
> $B$"$j$^$9(B. $B6-3&%A%'%C%/$N0z?t$,@5$7$/$J$/(B, $BB>$K$b%3!<%G%#%s%0>e$N4V0c$$(B
> $B$,$"$k$?$a(B, $B$"$kIT@5$J(B IP $B%Q%1%C%H$r<u$1<h$k$H(B, $B%G!<%?$,GK2u$5$l$?$j(B, 
> $B%+!<%M%k$,%Q%K%C%/$7$?$j$9$k4m81$,$"$j$^$9(B. 

 FreeBSD $B$N(B IP $B%9%?%C%/$K$*$1$k(B IP $B%*%W%7%g%s$N=hM}$K$O$$$/$D$+$N%P%0$,(B
 $BB8:_$7$^$9(B.  $B$=$N%P%0$H$O(B, $B0z?t$N6-3&%A%'%C%/$r@5$7$/9T$J$o$J$$$H$$$&$3$H$H(B,
 $BFCDj$NIT@5$J(B IP $B%Q%1%C%H$r<u$1<h$C$?>l9g(B, $B%G!<%?$NGK2u$d%+!<%M%k%Q%K%C%/$r(B
 $B0z$-5/$3$94m81@-$r;}$C$?%3!<%G%#%s%0>e$N8m$j$,4^$^$l$F$$$k$H$$$&$3$H$G$9(B.

> This set of bugs includes the instance of the vulnerability described
> in NetBSD Security Advisory 2000-002 (see
> ftp://ftp.NetBSD.ORG/pub/NetBSD/misc/security/advisories/NetBSD-SA2000-002.txt.asc)
> as well as other bugs with similar effect.
> 
> $B$3$l$i$N%P%0$K$O(B NetBSD Security Advisory 2000-002
> (ftp://ftp.NetBSD.ORG/pub/NetBSD/misc/security/advisories/NetBSD-SA2000-002.txt.asc 
> $B;2>H(B) $B$K5-=R$5$l$F$$$k<eE@$,4^$^$l$F$$$^$9(B, $B$^$?B>$N%P%0$b;w$?$h$&$J(B
> $B1F6A$,$"$j$^$9(B. 

 $B$3$l$i0lO"$N%P%0$K$O(B NetBSD Security Advisory 2000-002
 (ftp://ftp.NetBSD.ORG/pub/NetBSD/misc/security/advisories/NetBSD-SA2000-002.txt.asc 
 $B;2>H(B) $B$K5-=R$5$l$F$$$k<eE@$*$h$S(B, $B$=$l$H;w$?$h$&$J1F6A$r$*$h$\$9(B
 $BJL$N%P%0$b4^$^$l$F$$$^$9(B.

--
| $B:4F#(B $B9-@8!wEl5~M}2JBg3X(B <hrs@geocities.co.jp>
|
|                                     j7397067@ed.noda.sut.ac.jp(UNIV)
|                                sato@sekine00.ee.noda.sut.ac.jp(UNIV)
|                                     hrs@FreeBSD.org(FreeBSD Project)
