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Algorithmic Complexity The advisory has been revoked - it doesn't affect any version of package expat  (opens in a new tab)

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EPSS
5.72% (93rd percentile)

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  • Snyk IDSNYK-RHEL10-EXPAT-9883353
  • published28 Apr 2025
  • disclosed3 Mar 2012
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Introduced: 3 Mar 2012

CVE-2012-0876  (opens in a new tab)
CWE-407  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by RHEL.

The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.

References