发布日期：2009-06-06
更新日期：2009-06-09受影响系统：
Apache Group APR-util 1.3.x
不受影响系统：
Apache Group APR-util 1.3.7
描述：
--------------------------------------------------------------------------------
BUGTRAQ ID: 35253
CVE（CAN） ID: CVE-2009-1955Apr-util是Apache所使用的Apache可移植运行时工具库。 APR-util库所使用的expat XML解析器（位于xml/apr_xml.c文件的apr_xml_*接口）在处理实体定义中包含有大量嵌套实体引用的XML文件时可能会耗尽所有可用的内存，导致拒绝服务的情况。所有使用APR-util库的expat wrapper接口解析不可信任XML文档的网络服务都受这个漏洞影响，如Apache httpd WebDAV模块mod_dav。<*来源：Joe Orton
链接：http://marc.info/？l=apr-dev&m=124396021826125&w=2
http://secunia.com/advisories/35284/
http://www.debian.org/security/2009/dsa-1812
*>测试方法：
--------------------------------------------------------------------------------警 告以下程序（方法）可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！http://milw0rm.com/exploits/8842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://en.securitylab.ru/bitrix/redirect.php？event3=381000&goto=http%3A%2F%2Fsvn.apache.org%2Fviewvc%3Fview%3Drev%26revision%3D781403Debian
------
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 982d6c15afd4477277b01c004b7c8ac0alpha 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 03bc9c912b8b625af79f39284d45eeedamd64 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 6097da9f80f44b379f1b1d46aa13867aarm 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 8d1d8a51de432ecdca221d3aab3a0342hppa 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 4dce52054b7fd81027e5f002d36b9ca1i386 architecture （Intel ia32）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_i386.deb
Size/MD5 checksum: 68680 d65d8158a672fc285a5329a96f927ff0
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_i386.deb
Size/MD5 checksum: 116416 0fffc0910d45788aa2e5632913f97b5e
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_i386.deb
Size/MD5 checksum: 122170 5c6fe8e442ec6aa146cc5f534d045e70ia64 architecture （Intel ia64）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_ia64.deb
Size/MD5 checksum: 118768 c240a8957e74b4133d14524d65a0ca84
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_ia64.deb
Size/MD5 checksum: 156554 75f7ef24fb756f82c41c376fbb976eb2
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_ia64.deb
Size/MD5 checksum: 99380 31a30996ae576e028cd7d1b0e248096dmips architecture （MIPS （Big Endian））http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_mips.deb
Size/MD5 checksum: 130216 64f856948c06a836e1e7ccb5288a8fd5
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_mips.deb
Size/MD5 checksum: 130378 5c2bcd90e3e764b63fad5e7108f2f5c7
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_mips.deb
Size/MD5 checksum: 70666 d8f16a952a9b49f1c1cce2dba45d4b67mipsel architecture （MIPS （Little Endian））http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_mipsel.deb
Size/MD5 checksum: 130588 d24b45d678dd58b62518ddf1f6d9fd2f
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_mipsel.deb
Size/MD5 checksum: 127794 2d8ed73655993e12cdb0d4b316315f2c
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_mipsel.deb
Size/MD5 checksum: 70674 5242004658e91c173b717bde60a8085epowerpc architecture （PowerPC）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_powerpc.deb
Size/MD5 checksum: 130406 0016513b87ff4564f5ff69621d431e13
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_powerpc.deb
Size/MD5 checksum: 125072 bc5539dda0daa900abfe77a088899f16
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_powerpc.deb
Size/MD5 checksum: 72400 28647bd35db14975a678c4424f0fb4aas390 architecture （IBM S/390）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_s390.deb
Size/MD5 checksum: 128360 df7691e2ac57d344c7c341ea7f606f3a
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_s390.deb
Size/MD5 checksum: 76592 482e412db007c81e2174a6bd729fc2a0
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_s390.deb
Size/MD5 checksum: 124716 9405781379de1b80fc8c7bd18260bd3csparc architecture （Sun SPARC/UltraSPARC）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.7+dfsg-2+etch2_sparc.deb
Size/MD5 checksum: 117158 bb4555e88f9b7f2a1127f24970b0863b
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.7+dfsg-2+etch2_sparc.deb
Size/MD5 checksum: 118574 366b392d5b9ba2771b08bec842ecca9a
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.7+dfsg-2+etch2_sparc.deb
Size/MD5 checksum: 66320 895fccdd633a9323f2e892a333e2f1f1
Debian GNU/Linux 5.0 alias lenny
- --------------------------------Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.Source archives:http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.12+dfsg.orig.tar.gz
Size/MD5 checksum: 658687 4ef3e41037fe0cdd3a0d107335a008eb
http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.12+dfsg-8+lenny2.dsc
Size/MD5 checksum: 1530 2e0b102b714edffebe80b7522b60eb93
http://security.debian.org/pool/updates/main/a/apr-util/apr-util_1.2.12+dfsg-8+lenny2.diff.gz
Size/MD5 checksum: 22021 5ac66e9e3e4a3b3f93f25a075d7087eaalpha architecture （DEC Alpha）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_alpha.deb
Size/MD5 checksum: 146564 57902eabc0f7164fdb65f99742e774a9
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_alpha.deb
Size/MD5 checksum: 157358 74fe3e8f488bca9d715a91852748215a
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_alpha.deb
Size/MD5 checksum: 90574 78164e1209b66d8358931a4c783abf9eamd64 architecture （AMD x86_64 （AMD64））http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_amd64.deb
Size/MD5 checksum: 132654 20dc399a6c86153c0021d273b34eceaf
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_amd64.deb
Size/MD5 checksum: 147538 ed67540d4baa9bce263df53c180e883e
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_amd64.deb
Size/MD5 checksum: 79814 4b71fcc802a207c1d1e1f54c4460c775arm architecture （ARM）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_arm.deb
Size/MD5 checksum: 124566 bddd5c3e65dfbe7cba72edf1872f6612
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_arm.deb
Size/MD5 checksum: 71258 44658bee5eb78ff87e93008dd2d5ef1b
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_arm.deb
Size/MD5 checksum: 138786 06343f2a0707a8aab17cf292da23ab7carmel architecture （ARM EABI）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_armel.deb
Size/MD5 checksum: 125382 63b253107c09d8f22a74daf4e75c0d4f
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_armel.deb
Size/MD5 checksum: 138852 d19e3658c9d0659845c2b27c9130c871
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_armel.deb
Size/MD5 checksum: 69786 22e9c23a71adec339b6048e4909e7b64hppa architecture （HP PA RISC）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_hppa.deb
Size/MD5 checksum: 139700 67e358018e90e3a0a112f2b0ecb5c8e1
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_hppa.deb
Size/MD5 checksum: 83228 5e90a7a8e2f17dbe1099b4275dbfecce
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_hppa.deb
Size/MD5 checksum: 142974 bdac87da2eb60b9c2dc5f2cb77065135i386 architecture （Intel ia32）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_i386.deb
Size/MD5 checksum: 120742 8f22bb0169bb8adfafb8295cd8e11a5d
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_i386.deb
Size/MD5 checksum: 73636 e8bafce964601ca062a3e8dc3e9ab887
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_i386.deb
Size/MD5 checksum: 141210 9cfb5f9c9a81d8c9d246bcda411330d5ia64 architecture （Intel ia64）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_ia64.deb
Size/MD5 checksum: 135222 6e69a6671e161d561c74db4328f83002
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_ia64.deb
Size/MD5 checksum: 110928 6edc23e6b3e254d9e3a945eb8b201549
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_ia64.deb
Size/MD5 checksum: 169954 af3e28f3b3f42df488885d2bf8025a4bmips architecture （MIPS （Big Endian））http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_mips.deb
Size/MD5 checksum: 147132 96b0bf6e077e8abc8ce12fff05b4151d
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_mips.deb
Size/MD5 checksum: 74196 128cbbed2eaaa51c2e92a4bfe6076cd0
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_mips.deb
Size/MD5 checksum: 137308 af2189d769dd968ef38b47a22664de82mipsel architecture （MIPS （Little Endian））http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_mipsel.deb
Size/MD5 checksum: 74124 4894b4b56cc740ca877af667681ebfaa
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_mipsel.deb
Size/MD5 checksum: 144442 37c6b6c54ab1b0539d10565d4c668f6b
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_mipsel.deb
Size/MD5 checksum: 136152 e0b1e255aabc2db28542107ad15f5b46powerpc architecture （PowerPC）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_powerpc.deb
Size/MD5 checksum: 146778 34fd3aab3b62f4e3ccaa3ce6a27aa08d
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_powerpc.deb
Size/MD5 checksum: 82798 4f81cdc2bb6a92c9add30ce0c5566226
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_powerpc.deb
Size/MD5 checksum: 132238 5fc82f511183058f4138c4cd07ec1ca9s390 architecture （IBM S/390）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_s390.deb
Size/MD5 checksum: 85280 c185347abe5db6c3c5c797714a476454
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_s390.deb
Size/MD5 checksum: 148334 b3bfbab7f4e064ab3065070879c28faf
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_s390.deb
Size/MD5 checksum: 132826 d547ee5465f7bef60c954de4d6721b31sparc architecture （Sun SPARC/UltraSPARC）http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1_1.2.12+dfsg-8+lenny2_sparc.deb
Size/MD5 checksum: 72812 9b27f0c316fd15a2535fd571bca5faa9
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dev_1.2.12+dfsg-8+lenny2_sparc.deb
Size/MD5 checksum: 124558 e3e07157b4bb28ec91168b6a038474d0
http://security.debian.org/pool/updates/main/a/apr-util/libaprutil1-dbg_1.2.12+dfsg-8+lenny2_sparc.deb
Size/MD5 checksum: 132136 f82857755ceba785fe679c16fe865f1d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调查发现58%大型企业仍担心开源软件不安全Apache Tomcat XML解析器非授权文件读写漏洞相关资讯 Apache APR-util xml/apr_xml.c文件拒绝服务漏洞 本文评论 查看全部评论 （0）
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