CVE-2023-45322

MEDIUM

libxml2 <= 2.11.5 - Use-After-Free in xmlUnlinkNode

Title source: llm

Description

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."

References (4)

Core 4

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html

Issue Tracking, Patch, Vendor Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/issues/344

Issue Tracking, Patch, Vendor Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/issues/583

Mailing List, Patch, Third Party Advisory mailing-list

http://www.openwall.com/lists/oss-security/2023/10/06/5

Scores

CVSS v3 6.5

EPSS 0.0083

EPSS Percentile 52.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-416

Status published

Products (1)

xmlsoft/libxml2 < 2.11.5

Published Oct 06, 2023

Tracked Since Feb 18, 2026