CVE-2012-4502

Publication date 5 November 2013

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Status

Package Ubuntu Release Status
chrony 17.10 artful
Not affected
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Not affected
15.10 wily Ignored end of life
15.04 vivid Ignored end of life
14.10 utopic Ignored end of life
14.04 LTS trusty
Not affected
13.10 saucy Ignored end of life
13.04 raring Ignored end of life
12.10 quantal Ignored end of life
12.04 LTS precise Ignored end of life
10.04 LTS lucid Ignored end of life