MEDIUM5.0
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.
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:PReferences
- http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
- http://permalink.gmane.org/gmane.comp.time.chrony.announce/15
- http://seclists.org/oss-sec/2013/q3/332
- http://www.debian.org/security/2013/dsa-2760
- https://bugzilla.redhat.com/show_bug.cgi?id=846392
- http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
- http://permalink.gmane.org/gmane.comp.time.chrony.announce/15
- http://seclists.org/oss-sec/2013/q3/332
- http://www.debian.org/security/2013/dsa-2760
- https://bugzilla.redhat.com/show_bug.cgi?id=846392