Vulnerabilities > CVE-2022-43680 - Use After Free vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/libexpat/libexpat/pull/650
- https://github.com/libexpat/libexpat/pull/616
- https://github.com/libexpat/libexpat/issues/649
- 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://security.netapp.com/advisory/ntap-20221118-0007/
- 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/
- http://www.openwall.com/lists/oss-security/2023/12/28/5
- http://www.openwall.com/lists/oss-security/2024/01/03/5