Detections
Analytics
CVE-2012-4502
high
Description
Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.
References
https://bugzilla.redhat.com/show_bug.cgi?id=846392
http://www.debian.org/security/2013/dsa-2760
http://seclists.org/oss-sec/2013/q3/332
http://permalink.gmane.org/gmane.comp.time.chrony.announce/15