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. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
VendorProductVersion
strongswanstrongswan
5.3.0 ≤
𝑥
< 5.9.12
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
strongswan
bullseye (security)
5.9.1-1+deb11u4
fixed
bullseye
5.9.1-1+deb11u4
fixed
bookworm
5.9.8-5+deb12u1
fixed
bookworm (security)
5.9.8-5+deb12u1
fixed
sid
5.9.13-2
fixed
trixie
5.9.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
strongswan
mantic
Fixed 5.9.11-1ubuntu1.1
released
lunar
Fixed 5.9.8-3ubuntu4.1
released
jammy
Fixed 5.9.5-2ubuntu2.2
released
focal
Fixed 5.8.2-1ubuntu3.6
released
bionic
Fixed 5.6.2-1ubuntu2.9+esm1
released
xenial
Fixed 5.3.5-1ubuntu3.8+esm4
released
trusty
not-affected
Common Weakness Enumeration
References
https://github.com/strongswan/strongswan/releases
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html
https://github.com/strongswan/strongswan/releases
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
https://security.netapp.com/advisory/ntap-20250117-0003/
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html