DescriptionThe IKE daemon in strongSwan 4.3.x before 4.3.7 and 4.4.x before 4.4.1 does not properly check the return values of snprintf calls, which allows remote attackers to execute arbitrary code via crafted (1) certificate or (2) identity data that triggers buffer overflows.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)stretch5.5.1-4+deb9u4fixed
stretch (security)5.5.1-4+deb9u5fixed
buster (security)5.7.2-1+deb10u1fixed
bullseye (security)5.9.1-1+deb11u1fixed
bookworm, sid5.9.4-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansourcelenny(not affected)
strongswansourcesqueeze(not affected)


[lenny] - strongswan <not-affected> (Vulnerability introduced in 4.3.3)
[squeeze] - strongswan <not-affected> (Vulnerability introduced in 4.3.3)

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