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CVE-2013-6401

Published: 21 March 2014

Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.

From the Ubuntu Security Team

Florian Weimer discovered that Jansson incorrectly handled hash collisions predictability. An attacker could possibly use this issue to cause a denial of service.

Priority

Medium

Status

Package Release Status
jansson
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
artful Not vulnerable
(2.6-1)
bionic Not vulnerable
(2.6-1)
lucid Does not exist

quantal Ignored
(end of life)
saucy Ignored
(end of life)
trusty
Released (2.5-2ubuntu0.1)
upstream
Released (2.6-1)
utopic Not vulnerable
(2.6-1)
vivid Not vulnerable
(2.6-1)
wily Not vulnerable
(2.6-1)
xenial Not vulnerable
(2.6-1)
yakkety Not vulnerable
(2.6-1)
zesty Not vulnerable
(2.6-1)
Patches:
upstream: https://github.com/akheron/jansson/commit/8f80c2d83808150724d31793e6ade92749b1faa4
upstream: https://github.com/akheron/jansson/commit/42016a35c8907e477be73b0b5d06cc09af231ee4