High severity · published Sep 14, 2022
CVE-2022-40674
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c
8.1
CVSS
2.2%
EPSS
No
On KEV
Description
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
FE
Fedora · Fedoraproject
35; 36; 37 · source: NVD
LI
Libexpat · Libexpat Project
before 2.4.9 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-40674
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-40674
Issue Tracking
https://github.com/libexpat/libexpat/pull/629
Issue Tracking
https://github.com/libexpat/libexpat/pull/640
Issue Tracking
https://lists.debian.org/debian-lts-announce/2022/09/msg00029.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSVZN3IJ6OCPSJL7AEX3ZHSHAHFOGESK/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J2IGJNHFV53PYST7VQV3T4NHVYAMXA36/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LQB6FJAM5YQ35SF5B2MN25Y2FX56EOEZ/
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