Apache APR-util库apr_strmatch_precompile()函数整数下溢漏洞

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受影响系统：

Apache Group APR-util 1.3.4

不受影响系统：

Apache Group APR-util 1.3.5

描述：

BUGTRAQ ID: 35221
CVE(CAN) ID: CVE-2009-0023

Apr-util是Apache所使用的Apache可移植运行时工具库。

Apr-util库的strmatch/apr_strmatch.c文件中的apr_strmatch_precompile函数存在整数下溢漏洞。如果远程攻击者通过.htaccess文件、mod_dav_svn模块中的SVNMasterURI指令、mod_apreq2模块或libapreq2库等方式传送了特制输入的话，就可能导致守护程序崩溃。

<*来源：Matthew Palmer

  链接：http://secunia.com/advisories/35284/
        http://marc.info/?l=full-disclosure&m=124433042907878&w=2
        http://www.debian.org/security/2009/dsa-1812
*>

建议：

厂商补丁：

Apache Group
————
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：

http://svn.apache.org/viewvc?view=rev&revision=779880

Debian
——
Debian已经为此发布了一个安全公告（DSA-1812-1）以及相应补丁:
DSA-1812-1：New apr-util packages fix several vulnerabilities
链接：http://www.debian.org/security/2009/dsa-1812

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.7+dfsg-2+etch2.diff.gz
Size/MD5 checksum:    33117 ed3dc8bd1a5891432d7fc0614b94becd
http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.7+dfsg.orig.tar.gz
Size/MD5 checksum:   643328 a3117be657f99e92316be40add59b9ff
http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.7+dfsg-2+etch2.dsc
Size/MD5 checksum:     1036 982d6c15afd4477277b01c004b7c8ac0

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_alpha.deb
Size/MD5 checksum:    83614 7bc2f02a403bb653dde89fc6efd34e7b
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_alpha.deb
Size/MD5 checksum:   148054 45641c57b04ca3470eda5df4ce26742c
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_alpha.deb
Size/MD5 checksum:   128914 03bc9c912b8b625af79f39284d45eeed

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_amd64.deb
Size/MD5 checksum:    72828 4fc0d12955c259cf26aab065b174ccf3
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_amd64.deb
Size/MD5 checksum:   127854 fec6f28c19ad170d97e431a8657d6d3b
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_amd64.deb
Size/MD5 checksum:   124516 6097da9f80f44b379f1b1d46aa13867a

arm architecture (ARM)

http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_arm.deb
Size/MD5 checksum:    66038 d7c116a4589f3f280d3a8f6f698afc8a
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_arm.deb
Size/MD5 checksum:   116800 e46133d4e4e2191dae95e7d70df22b41
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_arm.deb
Size/MD5 checksum:   121028 8d1d8a51de432ecdca221d3aab3a0342

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_hppa.deb
Size/MD5 checksum:   133822 0060e1aa0428f163fd8a2391afd42d86
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_hppa.deb
Size/MD5 checksum:   126066 a197984d5f90879bfd5f5161d82fb793
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_hppa.deb
Size/MD5 checksum:    78586 4dce52054b7fd81027e5f002d36b9ca1

i386 architecture (Intel ia32)