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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1899-1
NVD severitymedium (attack range: remote)
Debian Bugs540144

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)wheezy4.5.2-1.5+deb7u8fixed
wheezy (security)4.5.2-1.5+deb7u10fixed
jessie5.2.1-6+deb8u4fixed
jessie (security)5.2.1-6+deb8u5fixed
stretch5.5.1-4fixed
stretch (security)5.5.1-4+deb9u1fixed
buster, sid5.6.0-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansource(unstable)4.3.2-1.1medium540144
strongswansourceetch2.8.0+dfsg-1+etch2mediumDSA-1899-1
strongswansourcelenny4.2.4-5+lenny3mediumDSA-1899-1

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