CVE-2022-43680

expat: use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate

Published Oct 24, 2022 CVSS 3.1 · 7.5 High EPSS 3.2% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3165-1 expat security update
Debian DSA Debian DSA DSA-5266-1 expat security update
Ubuntu USN Ubuntu USN USN-5638-2 Expat vulnerabilities
Ubuntu USN Ubuntu USN USN-5638-3 Expat vulnerability
Ubuntu USN Ubuntu USN USN-5638-4 Expat vulnerabilities
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}