CVE-2012-4502

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.

• tuxfamily chrony (<= 1.28) • tuxfamily chrony 1.0 • tuxfamily chrony 1.1 • tuxfamily chrony 1.18 • tuxfamily chrony 1.19 • tuxfamily chrony 1.19.99.1 • tuxfamily chrony 1.19.99.2 • tuxfamily chrony 1.19.99.3 • tuxfamily chrony 1.20 • tuxfamily chrony 1.21 • tuxfamily chrony 1.23 • tuxfamily chrony 1.23.1 • tuxfamily chrony 1.24 • tuxfamily chrony 1.25 • tuxfamily chrony 1.26 • tuxfamily chrony 1.27 • tuxfamily chrony 1.28