CVE-2022-40674

nvd nist

Published: Sep 14, 2022Modified: May 30, 2025

8.1

Vector

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

Exploitability: 2.2 / Impact: 5.9

Source: NVD

Description

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

Affected (6)

Products: Libexpat Project: Libexpat · Debian: Debian Linux · Fedoraproject: Fedora

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Libexpat Project Libexpat	Before 2.4.9

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 11.0

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 35
Fedoraproject Fedora	Version 36
Fedoraproject Fedora	Version 37

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (24)

https://github.com/libexpat/libexpat/pull/629

Source: cve@mitre.org

Issue TrackingPatchThird Party Advisory

https://github.com/libexpat/libexpat/pull/640

Source: cve@mitre.org

Issue TrackingPatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/09/msg00029.html

Source: cve@mitre.org

Issue TrackingThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSVZN3IJ6OCPSJL7AEX3ZHSHAHFOGESK/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J2IGJNHFV53PYST7VQV3T4NHVYAMXA36/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LQB6FJAM5YQ35SF5B2MN25Y2FX56EOEZ/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WE2ZKEPGFCZ7R6DRVH3K6RBJPT42ZBEG/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCGBVQQ47URGJAZWHCISHDWF6QBTV2LE/

Source: cve@mitre.org

https://security.gentoo.org/glsa/202209-24

Source: cve@mitre.org

Third Party Advisory

https://security.gentoo.org/glsa/202211-06

Source: cve@mitre.org

Third Party Advisory

https://security.netapp.com/advisory/ntap-20221028-0008/

Source: cve@mitre.org

Third Party Advisory

https://www.debian.org/security/2022/dsa-5236

Source: cve@mitre.org

Third Party Advisory

https://github.com/libexpat/libexpat/pull/629