Double Free Affecting python3-libxml2-python package, versions <2.9.7-150000.3.57.1
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Test your applications- Snyk ID SNYK-SLES151-PYTHON3LIBXML2PYTHON-5488145
- published 27 Apr 2023
- disclosed 26 Apr 2023
Introduced: 26 Apr 2023
CVE-2023-29469 Open this link in a new tabHow to fix?
Upgrade SLES:15.1 python3-libxml2-python to version 2.9.7-150000.3.57.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python3-libxml2-python package and not the python3-libxml2-python package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).
References
- https://www.suse.com/security/cve/CVE-2023-29469.html
- https://bugzilla.suse.com/1210412
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/510
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html
- https://security.netapp.com/advisory/ntap-20230601-0006/