Use After Free Affecting expat-static package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.24% (81st percentile)

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  • Snyk IDSNYK-RHEL7-EXPATSTATIC-3104764
  • published4 Nov 2022
  • disclosed24 Oct 2022

Introduced: 24 Oct 2022

CVE-2022-43680  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 expat-static.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat-static package and not the expat-static package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

References

CVSS Base Scores

version 3.1