CVE-2009-1955 - CVE House
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Status published High CVE-2009-1955

The expat XML parser in the apr_xml_* interface in xml/apr_xml.c...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

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Affected Vendor

Affected Software

apr-util, mac os x, linux enterprise server, debian linux, ubuntu linux, fedora, http server
Vulnerable Versions:
0, 9, 4.0, 6.06, 8.04, 8.10, 9.04, 10, 11, 2.2.0

Timeline

Official Publish: June 6th, 2009
Last Modified: August 7th, 2024
Added to House: July 19th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.