From owner-announce-jp@jp.freebsd.org  Tue Feb 20 18:57:18 2001
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Date: Mon, 19 Feb 2001 03:23:49 +0900 (JST)
Message-Id: <20010219.032349.30188298.hrs@eos.ocn.ne.jp>
To: announce-jp@jp.FreeBSD.org
From: Hiroki Sato <hrs@eos.ocn.ne.jp>
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Subject: Re: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-01:10.bind [REVISED]
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FreeBSD $B%;%-%e%j%F%#4+9p(B $BF|K\8lHG(B
=============================================================================
FreeBSD-SA-01:10 (2001-02-07)
 * bind remote denial of service [REVISED]
=============================================================================

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

  Subject: ANNOUNCE: FreeBSD Security Advisory: FreeBSD-SA-01:10.bind [REVISED]
  From: FreeBSD Security Advisories <security-advisories@FreeBSD.org>
  Date: Wed, 7 Feb 2001 11:28:33 -0800 (PST)
  Message-Id: <200102071928.f17JSXp03541@freefall.freebsd.org>
  X-Sequence: announce-jp 685

 $B$rF|K\8lLu$7$?$b$N$G$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. 
 $B=$@5%Q%C%AEy$NFbMF$,2~cb$5$l$F$$$J$$$3$H$r3NG'$9$k$?$a$K(B PGP $B=pL>$N(B
 $B%A%'%C%/$r9T$J$&$K$O(B, $B86J8$r;2>H$7$F$/$@$5$$(B. 

 $BF|K\8lLu$*$h$S(B, $B%_%i!<%5%$%HMxMQ$N>\:Y$K$D$$$F$O(B, $BJ8Kv$N!V(BA. FreeBSD
 $B%;%-%e%j%F%#4+9p(B $BF|K\8lHG$K$D$$$F!W$r$4Mw$/$@$5$$(B.


                                     [$BK]Lu<T(B: $B:4F#(B $B9-@8(B <hrs@jp.FreeBSD.org>]
--($B$3$3$+$i(B)
=============================================================================
FreeBSD-SA-01:10                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	bind remote denial of service [REVISED]

$BJ,N`(B:		core, ports
$B%b%8%e!<%k(B:	bind
$B9pCNF|(B:		2001-01-23
$B2~D{F|(B:		2001-02-07
$B%/%l%8%C%H(B:	Fabio Pietrosanti <fabio@TELEMAIL.IT>
$B1F6AHO0O(B:	$B=$@5F|0JA0$N(B FreeBSD 3.x
		$B=$@5F|0JA0$N(B Ports Collection
$B=$@5F|(B:		2000-11-27 (FreeBSD 3.5-STABLE)
		2001-01-05 (Ports Collection)
$B%Y%s%@$NBP1~(B:	$B=$@5HG$,8x3+:Q$_(B
FreeBSD $B$K8GM-$+(B:	NO


0.   $B2~D{MzNr(B - Revision History

v1.0  2001-01-23  $B=iHG8x3+(B
v1.1  2001-02-07  SA-01:18 $B$K5-:\$5$l$F$$$k(B, $B$h$j?<9o$JLdBj$K4X$9$kCm5-$r(B
                  $BDI2C$9$k$?$a$K:FH/9T(B.


I.   $BGX7J(B - Background

bind $B$O%I%a%$%s%M!<%`%7%9%F%`(B (DNS) $B%W%m%H%3%k$N<BAu$N0l$D$G$9(B.


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

$BCm0U(B: $B$3$N%;%-%e%j%F%#4+9p$N=$@5%Q%C%A$O(B, $B:G6a8x3+$5$l$?(B SA-01:18 $B$h$j$b(B
      $BB?$/$N?M!9$,%@%&%s%m!<%I$7$F$$$k$3$H$,3NG'$5$l$F$$$^$9(B.
      $B$3$N4+9p$HF1MM(B, SA-01:18 $B$O(B bind $B$K4X$9$k4+9p$G(B, FreeBSD $B$N(B
      $BA4%j%j!<%9$K1F6A$9$kHs>o$K?<9o$J%;%-%e%j%F%#>e$N<eE@$,5-:\$5$l$F$$$^$9(B.
      $B$9$Y$F$N(B DNS $B4IM}<T$O(B, $BD>$A$K(B SA-01:18 $B$r3NG'$5$l$k$3$H$r?d>)$7$^$9(B.

bind $B%M!<%`%5!<%P$K$O(B, $B05=L%>!<%sE>Aw$N=hM}ItJ,$K%;%-%e%j%F%#>e$N(B
$B<eE@$,B8:_$7$^$9(B.  $B05=L%>!<%sE>Aw(B (ZXFR) $B$N<BAu$KLdBj$,$"$k$?$a(B,
named $B$,%>!<%sE>Aw$H:F5"Ld$$9g$o$;$r9T$J$&$h$&$K@_Dj$5$l$F$$$k$H(B,
$B8"0R$r;}$C$?%>!<%s(B (authoritative zone) $B$X$N(B ZXFR $B$r9T$J$C$F(B
$B%j%b!<%H%[%9%HL>$NLd$$9g$o$;$r9T$J$&$H(B, $B$=$N8e(B named $B$,%/%i%C%7%e$7$^$9(B.
named $B$K$O(B, $B<+?H$,5!G=$7$J$/$J$C$?;~$K<+F0E*$K:F5/F0$r9T$J$&(B
$B4F;k%W%m%;%9$,@_Dj$5$l$F$$$J$$$?$a(B, $B$3$l$O%5!<%S%9K832967b(B (DoS) $B$K(B
$BMxMQ$5$l$k2DG=@-$,$"$j$^$9(B.

FreeBSD 3.5.1-RELEASE $B$r4^$`(B, $B=$@5F|0JA0$N$9$Y$F$N%P!<%8%g%s$N(B
FreeBSD 3.x $B$,$3$N%;%-%e%j%F%#>e$N<eE@$N1F6A$r<u$1$^$9(B.  $B$^$?(B,
bind8 port $B$K$bF1MM$N<eE@$,B8:_$7$^$9(B.  FreeBSD 4.x $B$O(B
BIND 8.2.3 $B7ONs$,;H$o$l$F$$$k$?$a(B, $B$3$NLdBj$N1F6A$O$"$j$^$;$s(B.


III. $B1F6AHO0O(B - Impact

$B0-0U$r;}$C$?%j%b!<%H%f!<%6$O(B, $B%>!<%sE>Aw$H:F5"Ld$$9g$o$;$r(B
$B9T$J$&$h$&$K@_Dj$5$l$F$$$k(B named $B%G!<%b%s$r%/%i%C%7%e$5$;$k$3$H$,2DG=$G$9(B.


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

$B1F6A$r0lIt$G$9$,(B, $B?.Mj$G$-$J$$%[%9%H$+$i$N%>!<%sE>Aw$r(B
$BL58z2=$9$k$3$H$G2sHr$9$k$3$H$,2DG=$G$9(B.  $B$?$@$7?.Mj$G$-$k%[%9%H$,(B
$B?/F~$r<u$1$?$j(B, $B$=$3$K0-0U$r;}$C$?%f!<%6$,$$$?>l9g(B,
$B$3$N%P%0$rMxMQ$7$?%5!<%S%9K832967b$r2sHr$9$k$3$H$O$G$-$J$$$3$H$K(B
$BCm0U$7$F$/$@$5$$(B.


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

[$B%Y!<%9%7%9%F%`(B]

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

[Ports Collection]

BIND $B$r(B Ports Collection $B$+$i%$%s%9%H!<%k$7(B, $B%Y!<%9%7%9%F%`$K$"$k(B BIND $B$N(B
$BBe$o$j$K;HMQ$7$F$$$k>l9g$O(B, $B<!$N$$$:$l$+$N<j=g$K=>$C$F$/$@$5$$(B.

1) Ports Collection $BA4BN$r%"%C%W%0%l!<%I$7(B, bind8 $B$N(B port $B$r:F9=C[$7$^$9(B.

2) $B8E$$(B ($BLuCm(B: bind8 $B$N(B) package $B$r%7%9%F%`$+$i:o=|$7(B, 
   bind8 $B$N(B package $B$r0J2<$N>l=j$+$i<hF@$7$F%$%s%9%H!<%k$7$^$9(B.

[i386]
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/net/bind-8.2.2p7.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/net/bind-8.2.2p7.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/net/bind-8.2.2p7.tgz

[alpha]

$B8=;~E@$G$O9=C[$N$?$a$N%^%7%s%j%=!<%9$,ITB-$7$F$$$k$?$a(B,
alpha $B%"!<%-%F%/%A%cMQ$N(B package $B$O<+F0@8@.$5$l$F$$$^$;$s(B.

3) bind8 $B$N?7$7$$(B port $B%9%1%k%H%s$r0J2<$N>l=j$+$i(B
   $B%@%&%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/

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


A.   FreeBSD $B%;%-%e%j%F%#4+9p(B $BF|K\8lHG$K$D$$$F(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$,(B
$B;29M$N$?$a$KDs6!$9$k$b$N$G$9(B.  $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.  

$B$?$@$7(B, $BK]Lu<T$*$h$S(B doc-jp $B$O(B, $B$=$NFbMF$K$D$$$F$$$+$J$kJ]>Z$b(B
$B$$$?$7$^$;$s$N$G$4Cm0U$/$@$5$$(B.  $BF|K\8lLu$K$D$$$F$N$40U8+(B, $B$4MWK>(B,
$B$*Ld$$9g$o$;Ey$O(B doc-jp@jp.FreeBSD.org $B$^$G$*4j$$$7$^$9(B.

$B$3$N4+9p$NCf$G>R2p$5$l$F$$$k(B WWW $B%5%$%H(B http://www.FreeBSD.org/ $B$*$h$S(B
FTP $B%5%$%H(B ftp://ftp.FreeBSD.org/ $B$K$O(B, $BF|K\$N%_%i!<%5%$%H$,B8:_$7$^$9(B.
$B%M%C%H%o!<%/$N:.;($r4KOB$9$k$?$a(B, $B$^$:$O%_%i!<%5%$%H$NMxMQ$r(B
$B9MN8$9$k$h$&$*4j$$$7$^$9(B.

$BF|K\$N%_%i!<%5%$%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.

$BB>$NCO0h$r4^$`(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$^$H$a$i$l$F$$$^$9(B.

