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安全研究
安全漏洞
PCRE字符类缓冲区溢出漏洞
发布日期：2008-01-28
更新日期：2008-03-18
受影响系统：
PCRE PCRE < 7.6不受影响系统：
PCRE PCRE 7.6描述：
BUGTRAQ ID: 27786
CVE(CAN) ID: CVE-2008-0674
PCRE（Perl兼容正则表达式）库是个开放源代码的软件，可提供正则表达式支持。
PCRE在处理字符类时存在缓冲区溢出漏洞，如果用户发送了codepoint大于255的超长UTF-8字符类的话，就可能触发这个溢出，导致执行任意指令。
<*来源：PCRE
链接：http://secunia.com/advisories/28923
https://bugzilla.redhat.com/long_list.cgi?buglist=431660
http://www.debian.org/security/2008/dsa-1499
http://security.gentoo.org/glsa/glsa-200803-24.xml
*>
建议：
厂商补丁：
Debian
------
Debian已经为此发布了一个安全公告（DSA-1499-1）以及相应补丁:
DSA-1499-1：New pcre3 packages fix arbitrary code execution
链接：http://www.debian.org/security/2008/dsa-1499
补丁下载：
Source archives:
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_4.5+7.4-2.diff.gz
Size/MD5 checksum: 99934 750cb82053d0d184e96b6f2256b07259
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_4.5+7.4-2.dsc
Size/MD5 checksum: 883 6d7166721448553dfe9672bdbb6c75c2
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_4.5+7.4.orig.tar.gz
Size/MD5 checksum: 1106897 de886b22cddc8eaf620a421d3041ee0b
Architecture independent packages:
http://security.debian.org/pool/updates/main/p/pcre3/pgrep_4.5+7.4-2_all.deb
Size/MD5 checksum: 764 f45e8c3460a8e966a1de6dd1f8499beb
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_alpha.deb
Size/MD5 checksum: 191228 b56575e6599f47fceeffbec81ae4badd
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_alpha.deb
Size/MD5 checksum: 218268 d4c05de57eafe47ffff9d07b84c99cd2
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_alpha.deb
Size/MD5 checksum: 21346 6cb3b9513b0acdc11b2b62524d0c996e
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_amd64.deb
Size/MD5 checksum: 181858 eaf65286f24f2eda0c5c2b0cf59d2e93
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_amd64.deb
Size/MD5 checksum: 19814 abef692f2c4fd08c8564986bef855f57
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_amd64.deb
Size/MD5 checksum: 206374 23d917983de3d901cdbc021d707bb6fd
arm architecture (ARM)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_arm.deb
Size/MD5 checksum: 183712 6e6d063b597e869a4a214e5175cfc7b1
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_arm.deb
Size/MD5 checksum: 209636 164c9c155f8c2704cebfd8798bd8d754
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_arm.deb
Size/MD5 checksum: 19398 d0a3bf731aa86aa6edd0288bf5f2a3d7
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_hppa.deb
Size/MD5 checksum: 208450 0b05321a818bfb34d17ff2baeaba6601
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_hppa.deb
Size/MD5 checksum: 21022 3ed44e57de9d68aeab7d4da4c40c2eac
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_hppa.deb
Size/MD5 checksum: 190888 671eb5283ff2527047d4b180ad6aee67
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_i386.deb
Size/MD5 checksum: 184086 5ad41047b80b2b9846c395e6f452b497
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_i386.deb
Size/MD5 checksum: 19024 ae71a5aa7677abddc6fbb5f1d69315be
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_i386.deb
Size/MD5 checksum: 206252 06a244ad5aed436a119db629b6f5a469
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_ia64.deb
Size/MD5 checksum: 228562 f1bc6cb07937b17adb7af5f9186cd7ed
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_ia64.deb
Size/MD5 checksum: 24750 c2340f5c62f546e6fa0bcdb2cbc9bd3e
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_ia64.deb
Size/MD5 checksum: 211280 1f181575a89a7ca5c2ff145818a08bfc
m68k architecture (Motorola Mc680x0)
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_m68k.deb
Size/MD5 checksum: 17968 820d2eb5c5a93f48b05d5cc6368239a6
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_m68k.deb
Size/MD5 checksum: 172432 6d503aca84a4397c9c3e93462aace3d8
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_m68k.deb
Size/MD5 checksum: 194352 af6fa0385f2609982e32f007f4c0b168
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_mips.deb
Size/MD5 checksum: 20102 b354118e316867f1e2517b77a88b69d3
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_mips.deb
Size/MD5 checksum: 209014 43115bb2e5e08ff0f949faaa3f23d5c1
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_mips.deb
Size/MD5 checksum: 180848 edaf555cb5ab54f994a62d29c2732428
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_mipsel.deb
Size/MD5 checksum: 207736 582e76a99b716d86c42e375947466249
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_mipsel.deb
Size/MD5 checksum: 20232 694073304814795f7836178de03ec204
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_mipsel.deb
Size/MD5 checksum: 181164 abc55dadc11e27d4b2d88d306c01a7be
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_powerpc.deb
Size/MD5 checksum: 21242 1efd8bde4d3876547974c520e16ad30d
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_powerpc.deb
Size/MD5 checksum: 213520 3bad72e9cba7e0aaa559596b1b36788c
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_powerpc.deb
Size/MD5 checksum: 185202 194d3ad7064270d7ab155cfa94ffd7fb
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_s390.deb
Size/MD5 checksum: 186256 b9f6c83e915fab6c290ca199e28f2d55
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_s390.deb
Size/MD5 checksum: 20148 447d0b6dd101eb01ee72c1e38c48f098
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_s390.deb
Size/MD5 checksum: 207724 c39055bc8c6a8de74d9de737d44f6f7a
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_4.5+7.4-2_sparc.deb
Size/MD5 checksum: 206280 212fff0a4f257eae567e908e5fb6ee7e
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_4.5+7.4-2_sparc.deb
Size/MD5 checksum: 19584 f6e80c15212e07cd031c2d7851f350fd
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_4.5+7.4-2_sparc.deb
Size/MD5 checksum: 182586 2a81eb26be398d300e9a74a6cfd23484
Debian GNU/Linux 4.0 alias etch
- -------------------------------
Source archives:
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4-3.dsc
Size/MD5 checksum: 888 b969e265a1471426c7b3570e437a201e
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4-3.diff.gz
Size/MD5 checksum: 83543 0dbf05fc511cca922726f1e7f2af763d
http://security.debian.org/pool/updates/main/p/pcre3/pcre3_6.7+7.4.orig.tar.gz
Size/MD5 checksum: 1106897 de886b22cddc8eaf620a421d3041ee0b
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_alpha.deb
Size/MD5 checksum: 209240 a185de00bd04e9957a21a9cadf5fd74c
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_alpha.deb
Size/MD5 checksum: 21038 625de9e5a33263fe3f5f11fab1c5fe8a
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_alpha.deb
Size/MD5 checksum: 265202 1197b103cad5c42c316319013f8cdb79
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_alpha.deb
Size/MD5 checksum: 90728 3f0620da404f3646eb26e943342e5412
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_amd64.deb
Size/MD5 checksum: 198458 b260423a6ca31c0b21b95d6fd27c7060
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_amd64.deb
Size/MD5 checksum: 20148 060259ef86fd5a4b343df02ac7e120a3
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_amd64.deb
Size/MD5 checksum: 89872 89ace0cae39660c0f3642713bd02a6e4
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_amd64.deb
Size/MD5 checksum: 249870 530568e698030731eb4c08c60abb1343
arm architecture (ARM)
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_arm.deb
Size/MD5 checksum: 19920 99ea14ce1a6c2972c5f1f2ecbb95f202
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_arm.deb
Size/MD5 checksum: 88864 2fd3ac5b6019856f9b268e2c26aa4f51
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_arm.deb
Size/MD5 checksum: 198132 13a5814d2cf8a020353dce2a66fc9ed7
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_arm.deb
Size/MD5 checksum: 243820 3e740955e7559e20cdeaa706ddaa8d17
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_hppa.deb
Size/MD5 checksum: 92218 53568ec7bfe7bc0f95dd482b5f13a285
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_hppa.deb
Size/MD5 checksum: 201718 8a28cf65d9bc2f937efab59759af6cc8
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_hppa.deb
Size/MD5 checksum: 256046 fd479a2655b6a7732f68f8bc00321f07
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_hppa.deb
Size/MD5 checksum: 20728 1604e931db96096ff7a5add991908ad1
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_i386.deb
Size/MD5 checksum: 19338 a87924cc11bf4f53e5b00219ef3f8a8c
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_i386.deb
Size/MD5 checksum: 196848 7efe08bf58a6570c3d832d1e842d5342
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_i386.deb
Size/MD5 checksum: 246880 4ce72015615de07dbaf00be25a52491b
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_i386.deb
Size/MD5 checksum: 89772 2ade3a16f074800ef669ca4680a91cb1
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_ia64.deb
Size/MD5 checksum: 230590 08a116a70d244c828492c30d2dbbb48e
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_ia64.deb
Size/MD5 checksum: 93758 914e2b8d0f3321f07c013f4345209db8
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_ia64.deb
Size/MD5 checksum: 25656 4bb1c29f4404522b2755625308a20b13
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_ia64.deb
Size/MD5 checksum: 280542 588310a23aad9f613c7830a2f0b563ef
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_mips.deb
Size/MD5 checksum: 90442 f9e23ed9d433c0cb8be1af30c5d4b612
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_mips.deb
Size/MD5 checksum: 253442 96c4033d2a2f739df24d6a024523d8a6
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_mips.deb
Size/MD5 checksum: 20420 4a32411e6f2062a198db3bd3b4446394
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_mips.deb
Size/MD5 checksum: 198318 72fc0f745b60d9db62e9d0455eb8fb3b
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_mipsel.deb
Size/MD5 checksum: 90412 1b7cd1ed0d81fe4df0cae8d99def8480
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_mipsel.deb
Size/MD5 checksum: 20448 64f1dfccabd44c59aa5a60fad6c9296f
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_mipsel.deb
Size/MD5 checksum: 197500 d598271ce0c2decf2aa6d4078beb9b9d
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_mipsel.deb
Size/MD5 checksum: 252310 9447ded9ce69a2122fe16749b9f5deeb
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_powerpc.deb
Size/MD5 checksum: 252946 10d0bd9b0d18f05c36a7463a47c4c42a
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_powerpc.deb
Size/MD5 checksum: 197584 f9150079915d856354f1d356dcc7b240
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_powerpc.deb
Size/MD5 checksum: 92048 7707c55edb19561761ae4829e49184a6
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_powerpc.deb
Size/MD5 checksum: 21266 30e019d1c324c03be716bac909f26dfd
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_s390.deb
Size/MD5 checksum: 90484 9016792309da7d08f03cdc4929260296
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_s390.deb
Size/MD5 checksum: 20092 ec77abe71ed14b6129ddab73582beee8
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_s390.deb
Size/MD5 checksum: 199916 beaac240ffda6fce20b4e002e5a1cdbe
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_s390.deb
Size/MD5 checksum: 248354 bf79866794ae8ad26e6ac5a66d1ed20f
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/p/pcre3/libpcrecpp0_6.7+7.4-3_sparc.deb
Size/MD5 checksum: 88690 a0104e54a7281ed10c7f9515f65b0063
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3-dev_6.7+7.4-3_sparc.deb
Size/MD5 checksum: 247136 abaea6c7e812a4e4911c46bd8f34a05b
http://security.debian.org/pool/updates/main/p/pcre3/libpcre3_6.7+7.4-3_sparc.deb
Size/MD5 checksum: 197550 57c76e81b4804a9c3d5f486e9359db9c
http://security.debian.org/pool/updates/main/p/pcre3/pcregrep_6.7+7.4-3_sparc.deb
Size/MD5 checksum: 19416 5f94f1ce7796dbd46e2b4bdcdf433c82
补丁安装方法：
1. 手工安装补丁包：
首先，使用下面的命令来下载补丁软件：
# wget url (url是补丁下载链接地址)
然后，使用下面的命令来安装补丁：
# dpkg -i file.deb (file是相应的补丁名)
2. 使用apt-get自动安装补丁包：
首先，使用下面的命令更新内部数据库：
# apt-get update
然后，使用下面的命令安装更新软件包：
# apt-get upgrade
Gentoo
------
Gentoo已经为此发布了一个安全公告（GLSA-200803-24）以及相应补丁:
GLSA-200803-24：PCRE: Buffer overflow
链接：http://security.gentoo.org/glsa/glsa-200803-24.xml
所有PCRE用户都应升级到最新版本：
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.6-r1"
所有GLib用户都应升级到最新版本：
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/glib-2.14.6"
PCRE
----
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-7.6.tar.bz2
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