CVE-2017-7961

Name	CVE-2017-7961
Description	The cr_tknzr_parse_rgb function in cr-tknzr.c in libcroco 0.6.11 and 0.6.12 has an "outside the range of representable values of type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CSS file. NOTE: third-party analysis reports "This is not a security issue in my view. The conversion surely is truncating the double into a long value, but there is no impact as the value is one of the RGB components.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-909-1
Debian Bugs	860961

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libcroco (PTS)	buster	0.6.12-3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libcroco	source	wheezy	0.6.6-2+deb7u1		DLA-909-1
libcroco	source	(unstable)	0.6.11-3			860961

Notes

[jessie] - libcroco <no-dsa> (Minor issue; will be fixed via point release)
https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/
https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7