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Date: Sun, 16 Dec 2001 15:19:42 +0900 (JST)
Message-Id: <20011216.151942.108734065.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-01:63.openssh
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FreeBSD $B%;%-%e%j%F%#4+9p(B $BF|K\8lHG(B
=============================================================================
FreeBSD-SA-01:63 (2001-12-06)
 * OpenSSH UseLogin directive permits privilege escalation [REVISED]
=============================================================================

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

  Subject: ANNOUNCE: FreeBSD Security Advisory FreeBSD-SA-01:63.openssh
  From: FreeBSD Security Advisories <security-advisories@freebsd.org>
  Date: Fri, 7 Dec 2001 04:30:11 -0800 (PST)
  Message-Id: <200112071230.fB7CUB066488@freefall.freebsd.org>
  X-Sequence: announce-jp 862

 $B$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~$6$s$5$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-01:63                                           Security Advisory
                                                                FreeBSD, Inc.

$B%H%T%C%/(B:	OpenSSH $B$N(B UseLogin $B;X<(;R$K5/0x$9$k(B root $B8"8B$NIT@5;HMQLdBj(B
                (OpenSSH UseLogin directive permits privilege escalation)
                [REVISED]

$BJ,N`(B:		core/ports
$B%b%8%e!<%k(B:	openssh
$B9pCNF|(B:		2001-12-02
$B2~D{F|(B:		2001-12-06
$B%/%l%8%C%H(B:	Markus Friedl <markus@OpenBSD.org>
$B1F6AHO0O(B:	FreeBSD 4.3-RELEASE, 4.4-RELEASE
                $B=$@5F|0JA0$N(B FreeBSD 4.4-STABLE
                $B=$@5F|0JA0$N(B Ports Collection
$B=$@5F|(B:		2001-12-03 00:53:28 UTC (RELENG_4)
                2001-12-03 00:54:18 UTC (RELENG_4_4)
                2001-12-03 00:54:54 UTC (RELENG_4_3)
                2001-12-02 06:52:40 UTC (openssh port)
FreeBSD $B$K8GM-$+(B:	NO


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

v1.0  2001-12-02  $B=iHG8x3+(B
v1.1  2001-07-31  $B=$@5%Q%C%A$NE,MQJ}K!$N@bL@$r=$@5(B


I.   $BGX7J(B - Background

OpenSSH $B$O(B, SSH1 $B$*$h$S(B SSH2 $B%;%-%e%"%7%'%k%W%m%H%3%k<BAu$N0l$D$G$9(B.
$B$3$l$O0E9f2=$HG'>Z$rHw$($?%M%C%H%o!<%/%"%/%;%9$r<B8=$9$k$b$N$G(B, $BC/$G$b(B
$B<+M3$KMxMQ$9$k$3$H$,$G$-$^$9(B.  OpenSSH $B$O(B FreeBSD Ports Collection $B$H(B
FreeBSD $B%Y!<%9%7%9%F%`$NN>J}$K4^$^$l$F$$$^$9(B.


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

OpenSSH $B$G$O(B, $BG'>Z$KMQ$$$k0E9f80$K1~$8$F%f!<%6$N4D6-JQ?t$r@_Dj$9$k(B
$B$3$H$,$G$-$k5!G=$,$"$j$^$9(B.  $B$3$l$i$N4D6-JQ?t$O(B, $B%5!<%P>e$N$=$N%f!<%6$N(B
$B%[!<%`%G%#%l%/%H%j$K$"$k(B `authorized_keys' (SSHv1) $B$b$7$/$O(B
`authorized_keys2' (SSHv2) $B$H$$$&%U%!%$%k$G;XDj$7$^$9(B.  $BDL>o(B, $B$3$l$O(B
$B$=$N%f!<%6$N8"8B$G5/F0$9$k%7%'%k$KEO$5$l$k$@$1$G(B, $B4m81@-$OFC$K$"$j$^$;$s(B.

$B$7$+$7(B, OpenSSH $B%5!<%P(B 'sshd' $B$,(B (sshd_config $B%U%!%$%kCf$G(B `UseLogin yes'
$B$H$$$&;X<(;R$r;XDj$9$k$3$H$G(B) $B%7%9%F%`$N(B login $B%W%m%0%i%`$r;H$&$h$&$K(B
$B@_Dj$5$l$F$$$k>l9g(B, $B$3$N4D6-JQ?t$O%9!<%Q%f!<%6(B ($BLuCm(B: root $B$N$3$H(B) $B$N8"8B$G(B
$B<B9T$5$l$k(B login $B%W%m%0%i%`$KEO$5$l$k$3$H$K$J$j$^$9(B.   $B$D$^$j(B,
$B$3$N5!G=$rMxMQ$7$F(B LD_LIBRARY_PATH $B$d(B LD_PRELOAD $B$H$$$C$?(B
$BFCDj$N4D6-JQ?t$r@_Dj$9$k$H(B, $B$=$N%f!<%6$O(B login $B$rMxMQ$7$F(B
$B%9!<%Q%f!<%68"8B$GG$0U$N%3!<%I$r<B9T$9$k$3$H$,2DG=$K$J$C$F$7$^$$$^$9(B.

FreeBSD 4.3, 4.4 $B$r4^$`(B, $B=$@5F|0JA0$N$9$Y$F$N(B FreeBSD 4.x $B$,(B
$B$3$NLdBj$K$h$k<eE@$r;}$C$F$$$^$9(B.  $B$7$+$7(B, OpenSSH $B%5!<%P$OI8=`@_Dj$G(B
$B%7%9%F%`$N(B login $B%W%m%0%i%`$r;H$o$J$$@_Dj(B (`UseLogin no') $B$H(B
$B$J$C$F$$$k$?$a(B, $B$3$N@_Dj$r4IM}<T$,JQ99$7$F$$$J$1$l$P(B,
$B$3$NLdBj$K$h$k1F6A$O$"$j$^$;$s(B.

$B$^$?(B, Ports Collection $B$K$O(B 2 $B<oN`$N(B OpenSSH $B$,B8:_$7$^$9(B.  $B0l$D$O(B
ports/security/openssh $B$G$"$j(B, BSD $B$KFC2=$7$?(B OpenSSH $B$G$9(B.
$B$3$N(B port $B$N(B openssh-3.0.2 $B$h$jA0$N%P!<%8%g%s$K$O(B, $B>e=R$7$?LdBj$K5/0x$9$k(B
$B%;%-%e%j%F%#>e$N<eE@$,B8:_$7$^$9(B.  $B$^$?(B, $B$b$&0l$D(B
ports/security/openssh-portable $B$H$$$&$b$N$,$"$j$^$9$,(B, $B$3$A$i$O(B
`UseLogin yes' $B$N;XDj$K4X$o$i$:(B, $B>e=R$NLdBj$N1F6A$O<u$1$^$;$s(B.


III. $B1F6AHO0O(B - Impact

$B0-0U$r;}$A(B, $B@5Ev$J%"%+%&%s%H$r=jM-$9$k%f!<%6$O(B,
$B8x3+80G'>Z$N5!G=$r;H$C$F(B /usr/bin/login $B$r0-MQ$9$k$3$H$G(B,
$B%9!<%Q%f!<%6$N8"8B$GG$0U$N%3!<%I$r<B9T$G$-$k4m81@-$,$"$j$^$9(B.

sshd $B@_Dj%U%!%$%k$G(B 'UseLogin' $B$rM-8z$K$7$F$$$J$1$l$P(B,
$B$3$NLdBj$K$h$k%;%-%e%j%F%#>e$N<eE@$O$"$j$^$;$s(B.


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

$B%;%-%e%j%F%#>e$N<eE@$r<h$j=|$/$K$O(B, $B<!$N$$$:$l$+$K=>$C$F$/$@$5$$(B.

1) sshd $B$,%7%9%F%`$N(B login $B%W%m%0%i%`$r;H$o$J$$$h$&$K@_Dj$9$k(B.
   sshd $B%5!<%P$N@_Dj%U%!%$%k$rJT=8$7(B, $B$9$Y$F$N(B 'UseLogin' $B;X<(;R$r(B
   'UseLogin no' $B$K@_Dj$7$^$9(B.  $B$3$A$i$,K>$^$7$$2sHrK!$G$9(B.

2) $B2?$i$+$NM}M3$G(B 'UseLogin' $B$rL58z$K$9$k$3$H$,$G$-$J$$>l9g$O(B,
   $B$=$NBe$o$j$K8x3+80G'>Z$rL58z2=$9$k$3$H$G<eE@$r2sHr$9$k$3$H$,2DG=$G$9(B.
   sshd $B%5!<%P@_Dj%U%!%$%k$rJT=8$7(B, `RSAAuthentication',
   `DSAAuthentication', `PubKeyAuthentication' $B$H$$$&;X<(;R$r(B, $B$=$l$>$l(B
   `RSAAuthentication no', `DSAAuthentication no',
   `PubKeyAuthentication no' $B$KJQ99$7$^$9(B.

FreeBSD $B%Y!<%9%7%9%F%`$K4^$^$l$k(B sshd (/usr/sbin/sshd) $B$N(B
$B%5!<%P@_Dj%U%!%$%k$O(B `/etc/ssh/sshd_config' $B$K$"$j$^$9(B.
$B$^$?(B, Ports Collection $B$K4^$^$l$k(B sshd $B$N%5!<%P@_Dj%U%!%$%k$O(B
`/usr/local/etc/sshd_config' $B$G$9(B.

sshd $B$N@_Dj%U%!%$%k$rJQ99$7$?$i(B, $B<!$N%3%^%s%I$r(B root $B8"8B$G<B9T$7(B,
sshd $B%G!<%b%s$r:F5/F0$9$kI,MW$,$"$j$^$9(B.

# kill -HUP `cat /var/run/sshd.pid`


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

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

1) $B<eE@$r;}$C$?%7%9%F%`$r(B FreeBSD 4.3-RELEASEp21, 4.4-RELEASEp1 $B$"$k$$$O(B
   $B=$@5F|0J9_$N(B 4.4-STABLE $B$K%"%C%W%0%l!<%I$9$k$+(B, $B8=:_1?MQCf$N%7%9%F%`$N(B
   $B%=!<%9%3!<%I$K=$@5%Q%C%A$rE,MQ$7$F:F9=C[$7$^$9(B.

2) $B=$@5F|0J9_$N(B FreeBSD 4.x $B%7%9%F%`$N>l9g(B:

$B2<$N=$@5%Q%C%A$O(B, FreeBSD 4.3-RELEASE, 4.4-RELEASE, $B=$@5F|0JA0$N(B
4.4-STABLE $B$KE,MQ2DG=$G$"$k$3$H$,3NG'$5$l$F$$$k$b$N$G$9(B.
$B$=$l$i$h$j$b8E$+$C$?$j(B, $B4{$K%5%]!<%H$5$l$F$$$J$$%P!<%8%g%s$N(B FreeBSD $B$K(B
$BBP$7$F(B, $B$3$l$,E,MQ2DG=$+$I$&$+$OITL@$G$9(B.

$B0J2<$N>l=j$+$i=$@5%Q%C%A$H(B PGP $B=pL>$r%@%&%s%m!<%I$7(B, PGP $B%f!<%F%#%j%F%#$r(B
$B;H$C$FEE;R=pL>$N3NG'$r9T$J$$$^$9(B.

# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-01:63/sshd.patch
# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-01:63/sshd.patch.asc

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

# cd /usr/src/crypto/openssh
# patch < /path/to/sshd.patch
# cd /usr/src/secure/lib/libssh
# make depend && make all
# cd /usr/src/secure/usr.sbin/sshd
# make depend && make all install

3) FreeBSD 4.4-RELEASE $B%7%9%F%`$N>l9g(B:

$B<B83E*$J$b$N$G$9$,(B, $B%"%C%W%0%l!<%I%Q%C%1!<%8$,MQ0U$5$l$F$$$^$9(B.
$B$3$l$O%P%$%J%j%"%C%W%0%l!<%I5!G=$N;n83$*$h$S(B, $B$=$l$KBP$9$k0U8+$r(B
$BDs6!$7$F$$$?$@$1$k%f!<%68~$1$N$b$N$G$9(B.  $B$3$N%Q%C%1!<%8$O(B
FreeBSD 4.4-RELEASE $B%7%9%F%`$K$N$_%$%s%9%H!<%k2DG=$G(B, $B%=!<%9$X(B
$B=$@5%Q%C%A$rE,MQ$9$k$3$H$,8=<BE*$G$J$+$C$?$j(B, $B$=$&$9$k$3$H$,(B
$B$U$5$o$7$/$J$$$H9M$($i$l$k%7%9%F%`$G$NMxMQ$r9MN8$7$?$b$N$G$9(B.

$B$3$N%"%C%W%0%l!<%I%Q%C%1!<%8$rMxMQ$9$k>l9g$O(B, $B>-Mh$N%;%-%e%j%F%#4+9p$r(B
$B$h$jNI$$$b$N$K$9$k$?$a(B, ($B9NDjE*!&H]DjE*$N$$$:$l$G$"$C$F$b(B)
security-officer@FreeBSD.org $B$^$G$40U8+$r$*4s$;$/$@$5$$(B.  

$B%$%s%9%H!<%k=hM}$NESCf$G(B, $B%"%C%W%0%l!<%I%Q%C%1!<%8$O(B
$BCV$-49$($k%U%!%$%k$N%P%C%/%"%C%W%3%T!<$r:n@.$7$^$9(B.  
$B%"%C%W%0%l!<%I%Q%C%1!<%8$,:o=|$5$l$?;~(B, $B$3$N%P%C%/%"%C%W%3%T!<$O(B
$B:F%$%s%9%H!<%k$5$l$F%7%9%F%`$O=$@5%Q%C%A$rE,MQ$9$kA0$N>uBV$KLa$j$^$9(B.
$B$^$?$3$N%Q%C%1!<%8$O(B, $B4{$K(B sshd $B%G!<%b%s$,<B9T$5$l$F$$$k>l9g(B, $B<+F0E*$K(B
$B%G!<%b%s$N:F5/F0$r9T$J$$$^$9(B.

$B%"%C%W%0%l!<%I%Q%C%1!<%8$O(B,
kerberosIV $BG[I[J*$,%$%s%9%H!<%k$5$l$F$$$k%7%9%F%`MQ(B,
kerberos5 $BG[I[J*$,%$%s%9%H!<%k$5$l$F$$$k%7%9%F%`MQ(B,
$B$=$N$$$:$l$b%$%s%9%H!<%k$5$l$F$$$J$$%7%9%F%`MQ$K(B 3 $B<oN`MQ0U$5$l$F$$$^$9(B.

3a) kerberosIV $B$H(B kerberos5 $B$N$$$:$l$b%$%s%9%H!<%k$5$l$F$$$J$$%7%9%F%`$N>l9g(B

# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-01.63.tgz
# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-01.63.tgz.asc

PGP $B%f!<%F%#%j%F%#$r;H$C$F(B PGP $B=pL>$r3NG'$7$^$9(B.

# pkg_add security-patch-sshd-01.63.tgz

3b) kerberosIV $B$N$_$,%$%s%9%H!<%k$5$l$F$$$k%7%9%F%`$N>l9g(B

# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberosIV-01.63.tgz
# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberosIV-01.63.tgz.asc

PGP $B%f!<%F%#%j%F%#$r;H$C$F(B PGP $B=pL>$r3NG'$7$^$9(B.

# pkg_add security-patch-sshd-kerberosIV-01.63.tgz

3c) kerberos5 $B$N$_$,%$%s%9%H!<%k$5$l$F$$$k%7%9%F%`$N>l9g(B

# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberos5-01.63.tgz
# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberos5-01.63.tgz.asc

PGP $B%f!<%F%#%j%F%#$r;H$C$F(B PGP $B=pL>$r3NG'$7$^$9(B.

# pkg_add security-patch-sshd-kerberos5-01.63.tgz

3d) kerberosIV $B$*$h$S(B kerberos5 $B$NN>J}$,%$%s%9%H!<%k$5$l$F$$$k%7%9%F%`$N>l9g(B

# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberosIV-kerberos5-01.63.tgz
# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/packages/SA-01:63/security-patch-sshd-kerberosIV-kerberos5-01.63.tgz.asc

PGP $B%f!<%F%#%j%F%#$r;H$C$F(B PGP $B=pL>$r3NG'$7$^$9(B.

# pkg_add security-patch-sshd-kerberosIV-kerberos5-01.63.tgz

[Ports collection]

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

1) Ports Collection $BA4BN$r%"%C%W%0%l!<%I$7$F(B OpenSSH port $B$r:F9=C[$9$k(B.

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

[i386]
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/security/openssh-3.0.2.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/security/openssh-3.0.2.tgz

[alpha]
$B8=;~E@$G$O(B alpha $B%"!<%-%F%/%A%cMQ$N(B package $B$O<+F0@8@.$5$l$F$$$^$;$s(B.
$B$3$l$O(B, $B9=C[$N$?$a$N%^%7%s%j%=!<%9$,ITB-$7$F$$$k$?$a$G$9(B.

$BCm0U(B: $B99?7$5$l$?(B package $B$,Ds6!$5$l$k$^$G(B, $B?tF|$+$+$k2DG=@-$,$"$j$^$9(B.
      $B$I$A$i$b%=%U%H%&%'%"$N%P!<%8%g%sHV9f$OF10l$G$9$N$G(B,
      package $B%U%!%$%k$N:n@.F|$r3NG'$9$k$h$&$K$7$F$/$@$5$$(B.

3) sshd $B$N?7$7$$(B port $B%9%1%k%H%s$r0J2<$N>l=j$+$i%@%&%s%m!<%I$7(B,
   $B$=$l$i$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-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz


VI. $B=$@5$N>\:Y(B - Correction details

$B%Q%9L>(B                                                       $B%j%S%8%g%sHV9f(B
  $B%V%i%s%A(B
- -------------------------------------------------------------------------
src/crypto/openssh/session.c
  HEAD                                                               1.18
  RELENG_4                                                       1.4.2.11
  RELENG_4_4                                                  1.4.2.8.4.1
  RELENG_4_3                                                  1.4.2.8.2.1
src/crypto/openssh/version.h
  HEAD                                                                1.9
  RELENG_4                                                    1.1.1.1.2.7
  RELENG_4_4                                              1.1.1.1.2.5.2.1
  RELENG_4_3                                              1.1.1.1.2.4.2.1
ports/security/openssh/Makefile                                      1.79
- -------------------------------------------------------------------------

$B%Y!<%9%7%9%F%`$K4^$^$l$k(B OpenSSH $B$N>l9g(B, FreeBSD $BHG$G$"$k$3$H$r<($9(B
$B%P!<%8%g%sJ8;zNs$,I=<($5$l$k$h$&$K$J$C$F$$$^$9(B.  $B<!$NI=$O(B, $B$3$N(B
$B%;%-%e%j%F%#>e$N<eE@$N=$@5$,E,MQ:Q$_$N3F%V%i%s%A$H(B, $B$=$l$KBP1~$9$k(B
$B%P!<%8%g%sJ8;zNs$r<($7$?$b$N$G$9(B.

$B%V%i%s%A(B                                                   $B%P!<%8%g%sJ8;zNs(B
- -------------------------------------------------------------------------
HEAD                         OpenSSH_2.9 FreeBSD localisations 20011202
RELENG_4                     OpenSSH_2.9 FreeBSD localisations 20011202
RELENG_4_4                   OpenSSH_2.3.0 FreeBSD localisations 20011202
RELENG_4_3                   OpenSSH_2.3.0 green@FreeBSD.org 20011202
- -------------------------------------------------------------------------

sshd $B%5!<%P$N%P!<%8%g%sJ8;zNs$rI=<($9$k$K$O(B, $B<!$N%3%^%s%I$r<B9T$7$^$9(B.

  % /usr/sbin/sshd -\?

$B%P!<%8%g%sJ8;zNs$O(B, $B%/%i%$%"%s%H$,%5!<%P$K@\B3$7$?;~$K$bI=<($5$l$^$9(B.


VII. $B;29M;qNA(B - References

<URL:http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/session.c#rev1.110>


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.

