{"id":"CVE-2009-1955","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.","modified":"2026-02-04T10:53:15.238429Z","published":"2009-06-08T01:00:00Z","related":["openSUSE-SU-2024:10268-1"],"references":[{"type":"ADVISORY","url":"http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html"},{"type":"ADVISORY","url":"http://secunia.com/advisories/34724"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35284"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35360"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35395"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35444"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35487"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35565"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35710"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35797"},{"type":"ADVISORY","url":"http://secunia.com/advisories/35843"},{"type":"ADVISORY","url":"http://secunia.com/advisories/36473"},{"type":"ADVISORY","url":"http://secunia.com/advisories/37221"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-200907-03.xml"},{"type":"ADVISORY","url":"http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.538210"},{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=swg1PK91241"},{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=swg1PK99478"},{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=swg27014463"},{"type":"ADVISORY","url":"http://www.debian.org/security/2009/dsa-1812"},{"type":"ADVISORY","url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:131"},{"type":"ADVISORY","url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:150"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html"},{"type":"ADVISORY","url":"http://www.redhat.com/support/errata/RHSA-2009-1107.html"},{"type":"ADVISORY","url":"http://www.redhat.com/support/errata/RHSA-2009-1108.html"},{"type":"ADVISORY","url":"http://www.securityfocus.com/archive/1/506053/100/0/threaded"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/35253"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/usn-786-1"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/usn-787-1"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2009/1907"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2009/3184"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2010/1107"},{"type":"ADVISORY","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10270"},{"type":"ADVISORY","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12473"},{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/8842"},{"type":"ARTICLE","url":"http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html"},{"type":"ARTICLE","url":"http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html"},{"type":"ARTICLE","url":"http://marc.info/?l=apr-dev&m=124396021826125&w=2"},{"type":"ARTICLE","url":"http://marc.info/?l=bugtraq&m=129190899612998&w=2"},{"type":"ARTICLE","url":"http://www.debian.org/security/2009/dsa-1812"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2009/06/03/4"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8%40%3Ccvs.httpd.apache.org%3E"},{"type":"ARTICLE","url":"https://lists.apach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