Home/CVE/libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in
CVE

CVE-2023-45322

libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in

libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail.".

MEDIUM · CVSS 6.5 EPSS 0.0007
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

1
xmlsoft libxml2<= 2.11.5
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Oct 2023 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

9
msrcCVE-2023-45322
suse-csafopenSUSE-SU-2024:13426-1
gitlab-securitypatch-release-gitlab-16-8-1-released
siemens-csafSSA-398330
suse-csafSUSE-SU-2023:4537-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2023/10/06/5Mailing ListPatchThird Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/344Issue TrackingPatchVendor Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/583Issue TrackingPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html
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