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.
seclists.org/bugtraq/2007/Dec/0202.html
secunia.com/advisories/28118
secunia.com/advisories/28279
secunia.com/advisories/28372
secunia.com/advisories/28483
security.gentoo.org/glsa/glsa-200712-19.xml
securitytracker.com/id?1019105
www.debian.org/security/2008/dsa-1464
www.osvdb.org/39551
www.securityfocus.com/archive/1/485181/100/0/threaded
www.securityfocus.com/bid/26897
www.vupen.com/english/advisories/2007/4257
bugzilla.redhat.com/show_bug.cgi?id=426173
exchange.xforce.ibmcloud.com/vulnerabilities/39082
www.redhat.com/archives/fedora-package-announce/2008-January/msg00606.html
www.redhat.com/archives/fedora-package-announce/2008-January/msg00610.html