Vulnerability Description
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).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xmlsoft | Libxml2 | < 2.10.4 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/510Issue TrackingVendor Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0006/
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/510Issue TrackingVendor Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0006/
FAQ
What is CVE-2023-29469?
CVE-2023-29469 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 lo...
How severe is CVE-2023-29469?
CVE-2023-29469 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-29469?
Check the references section above for vendor advisories and patch information. Affected products include: Xmlsoft Libxml2, Debian Debian Linux.