parsers.c in Privoxy before 3.0.23 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to an HTTP time header.
http://www.openwall.com/lists/oss-security/2015/01/27/20
http://www.openwall.com/lists/oss-security/2015/01/26/4
http://www.debian.org/security/2015/dsa-3145
http://secunia.com/advisories/62899
http://secunia.com/advisories/62775
http://lists.opensuse.org/opensuse-updates/2015-02/msg00031.html
http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/parsers.c?r1=1.297&r2=1.298
http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/ChangeLog?revision=1.197&view=markup