High severity · published Jan 26, 2022
CVE-2022-23990
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function
7.5
CVSS
4.7%
EPSS
No
On KEV
Description
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.7% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
Communications Metasolv Solution · Oracle
6.3.1 · source: NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
FE
Fedora · Fedoraproject
34; 35 · source: NVD
LI
Libexpat · Libexpat Project
before 2.4.4 · source: NVD
NE
Nessus · Tenable
before 8.15.3; 10.0.0 before 10.1.1 · source: NVD
SR
Sinema Remote Connect Server · Siemens
before 3.1 · 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-2022-23990
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23990
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Issue Tracking
https://github.com/libexpat/libexpat/pull/551
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34NXVL2RZC2YZRV74ZQ3RNFB7WCEUP7D/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7FF2UH7MPXKTADYSJUAHI2Y5UHBSHUH/
Third Party Advisory
https://security.gentoo.org/glsa/202209-24
Mailing List
https://www.debian.org/security/2022/dsa-5073
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