Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a denial of service (crash) via a message with a timestamp that does not contain a trailing space, which triggers a NULL pointer dereference.
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00610.html
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00606.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/39082
https://bugzilla.redhat.com/show_bug.cgi?id=426173
http://www.vupen.com/english/advisories/2007/4257
http://www.securityfocus.com/bid/26897
http://www.securityfocus.com/archive/1/485181/100/0/threaded
http://www.debian.org/security/2008/dsa-1464
http://securitytracker.com/id?1019105
http://security.gentoo.org/glsa/glsa-200712-19.xml
http://secunia.com/advisories/28483
http://secunia.com/advisories/28372
http://secunia.com/advisories/28279