CVE-2013-6075 Information

Description

The compare_dn function in utils/identification.c in strongSwan 4.3.3 through 5.1.1 allows (1) remote attackers to cause a denial of service (out-of-bounds read NULL pointer dereference and daemon crash) or (2) remote authenticated users to impersonate arbitrary users and bypass access restrictions via a crafted ID_DER_ASN1_DN ID related to an \insufficient length check\ during identity comparison.

Reference

http://download.strongswan.org/security/CVE-2013-6075/strongswan-4.3.3-5.1.0_id_dn_match.patch http://www.debian.org/security/2012/dsa-2789 http://www.strongswan.org/blog/2013/11/01/strongswan-denial-of-service-vulnerability-28cve-2013-607529.html