Vulnerability Description
An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xmlsoft | Libxml2 | < 2.11.8 |
Related Weaknesses (CWE)
References
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/720ExploitIssue Tracking
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8Release Notes
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/720ExploitIssue Tracking
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.8Release Notes
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7Release Notes
- https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]
- https://lists.fedoraproject.org/archives/list/[email protected]
FAQ
What is CVE-2024-34459?
CVE-2024-34459 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext i...
How severe is CVE-2024-34459?
CVE-2024-34459 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-34459?
Check the references section above for vendor advisories and patch information. Affected products include: Xmlsoft Libxml2.