Critical severity · published Dec 7, 2023
CVE-2023-41913
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy
9.8
CVSS
2.3%
EPSS
No
On KEV
Description
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ST
Strongswan · Strongswan
5.3.0 before 5.9.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-41913
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-41913
Release Notes
https://github.com/strongswan/strongswan/releases
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
Vendor Advisory
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/11/msg00018.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
security.netapp.com
https://security.netapp.com/advisory/ntap-20250117-0003/
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