The cu_rrd_create_file function (src/utils_rrdcreate.c) in collectd 4.x before 4.9.4 and before 4.10.2 allow remote attackers to cause a denial of service (assertion failure) via a packet with a timestamp whose value is 10 or less, as demonstrated by creating RRD files using the (1) RRDtool and (2) RRDCacheD plugins.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=605092
collectd.org/news.shtml#news86
lists.fedoraproject.org/pipermail/package-announce/2011-January/052875.html
lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
secunia.com/advisories/42393
secunia.com/advisories/42491
secunia.com/advisories/42846
www.debian.org/security/2010/dsa-2133
www.securityfocus.com/bid/45075
www.vupen.com/english/advisories/2010/3196
www.vupen.com/english/advisories/2011/0041