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CVE-2023-45322

Published: 6 October 2023

** DISPUTED ** 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."

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
trusty Not vulnerable
(disputed)
bionic Not vulnerable
(disputed)
focal Not vulnerable
(disputed)
jammy Not vulnerable
(disputed)
lunar Not vulnerable
(disputed)
upstream Needs triage

mantic Not vulnerable
(disputed)
xenial Not vulnerable
(disputed)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H