CVE-2009-2661 Information

Description

The 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.

Reference

http://download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.3.x_asn1_length.patch http://download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.x.x_asn1_length.patch http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html http://secunia.com/advisories/36922 http://up2date.astaro.com/2009/08/up2date_7505_released.html http://www.debian.org/security/2009/dsa-1899 http://www.openwall.com/lists/oss-security/2009/07/27/1 http://www.vupen.com/english/advisories/2009/2247 https://lists.strongswan.org/pipermail/announce/2009-July/000056.html