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The expat XML parser in the apr_xml_* interface in xml...

Moderate severity Unreviewed Published May 2, 2022 to the GitHub Advisory Database • Updated Feb 11, 2024

Package

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Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Jun 8, 2009
Published to the GitHub Advisory Database May 2, 2022
Last updated Feb 11, 2024

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(97th percentile)

Weaknesses

CVE ID

CVE-2009-1955

GHSA ID

GHSA-hfr6-pxvf-frf7

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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