CVEvulnerability

CVE-2009-1955

7.5 HIGH Published 2009-06-08 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-06-08
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-776

Description

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.

Affected configurations

• apache apr-util (< 1.3.7) • apple mac os x (< 10.6.2) • suse linux enterprise server 9 • debian debian linux 4.0 • canonical ubuntu linux 6.06 • canonical ubuntu linux 8.04 • canonical ubuntu linux 8.10 • canonical ubuntu linux 9.04 • fedoraproject fedora 9 • fedoraproject fedora 10 • fedoraproject fedora 11 • oracle http server • apache http server (>= 2.2.0 < 2.2.12)

Related

Weakness · CWE (1)

  • CWE-776 Improper Restriction of Recursive Entity References in DTDs weakness

Referenced by CWE · observed example (2)

  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) weakness
  • CWE-776 Improper Restriction of Recursive Entity References in DTDs weakness

References