CVE-2009-1955

    Dashboard / Vulnerabilities / CVE-2009-1955

    CVE-2009-1955

    Published: 8 Jun 2009Last Modified: 10 Apr 2026

    Summary:

    Details: The expat XML parser in the apr_xml_* interface in xml/apr_xml.c in Apache APR-util before 1.3.7, as used in the mod_dav and mod_dav_svn modules in the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via a crafted XML document containing a large number of nested entity references, as demonstrated by a PROPFIND request, a similar issue to CVE-2003-1564.

    References: http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html, http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html, http://secunia.com/advisories/34724, http://secunia.com/advisories/35284, http://secunia.com/advisories/35360, http://secunia.com/advisories/35395, http://secunia.com/advisories/35444, http://secunia.com/advisories/35487, http://secunia.com/advisories/35565, http://secunia.com/advisories/35710, http://secunia.com/advisories/35797, http://secunia.com/advisories/35843, http://secunia.com/advisories/36473, http://secunia.com/advisories/37221, http://security.gentoo.org/glsa/glsa-200907-03.xml, http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.538210, http://www-01.ibm.com/support/docview.wss?uid=swg1PK91241, http://www-01.ibm.com/support/docview.wss?uid=swg1PK99478, http://www-01.ibm.com/support/docview.wss?uid=swg27014463, http://www.debian.org/security/2009/dsa-1812, http://www.mandriva.com/security/advisories?name=MDVSA-2009:131, http://www.mandriva.com/security/advisories?name=MDVSA-2013:150, http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html, http://www.redhat.com/support/errata/RHSA-2009-1107.html, http://www.redhat.com/support/errata/RHSA-2009-1108.html, http://www.securityfocus.com/archive/1/506053/100/0/threaded, http://www.securityfocus.com/bid/35253, http://www.ubuntu.com/usn/usn-786-1, http://www.ubuntu.com/usn/usn-787-1, http://www.vupen.com/english/advisories/2009/1907, http://www.vupen.com/english/advisories/2009/3184, http://www.vupen.com/english/advisories/2010/1107, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10270, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12473, https://www.exploit-db.com/exploits/8842, http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html, http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html, http://marc.info/?l=apr-dev&m=124396021826125&w=2, http://marc.info/?l=bugtraq&m=129190899612998&w=2, http://www.debian.org/security/2009/dsa-1812, http://www.openwall.com/lists/oss-security/2009/06/03/4, https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E, https://www.redhat.com/archives/fedora-package-announce/2009-June/msg01173.html, https://www.redhat.com/archives/fedora-package-announce/2009-June/msg01201.html, https://www.redhat.com/archives/fedora-package-announce/2009-June/msg01228.html, https://www.exploit-db.com/exploits/8842, http://marc.info/?l=apr-dev&m=124396021826125&w=2, http://svn.apache.org/viewvc?view=rev&revision=781403, http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html, https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E, http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.538210, http://support.apple.com/kb/HT3937, http://wiki.rpath.com/Advisories:rPSA-2009-0123, http://www-01.ibm.com/support/docview.wss?uid=swg1PK88342, http://www-01.ibm.com/support/docview.wss?uid=swg1PK91241, http://www-01.ibm.com/support/docview.wss?uid=swg1PK99478, http://www-01.ibm.com/support/docview.wss?uid=swg27014463, http://www.apache.org/dist/apr/CHANGES-APR-UTIL-1.3, http://www.redhat.com/support/errata/RHSA-2009-1107.html, http://www.redhat.com/support/errata/RHSA-2009-1108.html, http://www.securityfocus.com/archive/1/506053/100/0/threaded, http://www.securityfocus.com/bid/35253, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10270, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12473

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2009-1955 | CVE-DB