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.

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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
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 30 May 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-05-30T19:20:52.533Z

Reserved: 2022-10-24T00:00:00.000Z

Link: CVE-2022-43680

cve-icon Vulnrichment

Updated: 2024-08-03T13:40:06.144Z

cve-icon NVD

Status : Modified

Published: 2022-10-24T14:15:53.323

Modified: 2025-05-30T20:15:31.250

Link: CVE-2022-43680

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-10-24T00:00:00Z

Links: CVE-2022-43680 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses