Bug 1450068 (CVE-2017-7961)

Summary:	CVE-2017-7961 libcroco: Undefined behavior issue in cr_tknzr_parse_rgb function
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dodji, fmuellner, mclasen, otaylor, rhughes
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:12:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1450069, 1450070, 1910597
Bug Blocks:

Description Adam Mariš 2017-05-11 13:34:58 UTC

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.

Upstream patch:

https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7

Reference:

https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/

Comment 1 Adam Mariš 2017-05-11 13:35:42 UTC

Created libcroco tracking bugs for this issue:

Affects: fedora-all [bug 1450070]


Created mingw-libcroco tracking bugs for this issue:

Affects: fedora-all [bug 1450069]