CVE-2009-2661

NameCVE-2009-2661
DescriptionThe asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which allows remote attackers to cause a denial of service (pluto IKE daemon crash) via malformed ASN.1 data. NOTE: this is due to an incomplete fix for CVE-2009-2185.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-1899-1
Debian Bugs540144

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)bullseye (security), bullseye5.9.1-1+deb11u4fixed
bookworm, bookworm (security)5.9.8-5+deb12u1fixed
sid, trixie5.9.13-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansourceetch2.8.0+dfsg-1+etch2DSA-1899-1
strongswansourcelenny4.2.4-5+lenny3DSA-1899-1
strongswansource(unstable)4.3.2-1.1540144
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