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Status published
Unknown
CVE-2022-43680
In libexpat through 2.4.9, there is a use-after free caused...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/libexpat/libexpat/pull/650
- https://github.com/libexpat/libexpat/issues/649
- https://github.com/libexpat/libexpat/pull/616
- https://lists.debian.org/debian-lts-announce/2022/10/msg00033.html
- https://www.debian.org/security/2022/dsa-5266
- https://security.gentoo.org/glsa/202210-38
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/
- https://security.netapp.com/advisory/ntap-20221118-0007/
- http://www.openwall.com/lists/oss-security/2023/12/28/5
- http://www.openwall.com/lists/oss-security/2024/01/03/5
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Affected Vendor
libexpat project
View all reports →Affected Software
libexpat, debian linux, fedora, h300s firmware, h500s firmware, h700s firmware, h410s firmware, h410c firmware, active iq unified manager, oncommand workflow automation, solidfire \& hci management node, hci compute node firmware
Vulnerable Versions:
0, 10.0, 11.0, 35, 36, 37
Timeline
Official Publish:
October 24th, 2022
Last Modified:
May 30th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.