CVE-2022-40674

HIGH

libexpat < 2.4.9 - Use-After-Free in doContent Function

Title source: llm
STIX 2.1

Description

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

References (12)

Core 12
Core References
Issue Tracking, Patch, Third Party Advisory
https://github.com/libexpat/libexpat/pull/629
Issue Tracking, Patch, Third Party Advisory
https://github.com/libexpat/libexpat/pull/640
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5236
Issue Tracking, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/09/msg00029.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202209-24
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202211-06

Scores

CVSS v3 8.1
EPSS 0.0094
EPSS Percentile 76.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (6)
debian/debian_linux 10.0
debian/debian_linux 11.0
fedoraproject/fedora 35
fedoraproject/fedora 36
fedoraproject/fedora 37
libexpat_project/libexpat < 2.4.9
Published Sep 14, 2022
Tracked Since Feb 18, 2026