Bug 1268249 (CVE-2015-7674)

Summary:	CVE-2015-7674 gdk-pixbuf: Heap overflow when scaling a GIF file
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	erik-fedora, fedora, mclasen, otte, raveit65.sun, rjones
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	gdk-pixbuf 2.32.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-23 12:58:38 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:	1273775, 1273776
Bug Blocks:	1268250

Description Adam Mariš 2015-10-02 09:51:55 UTC

Heap overflow flaw was found in the gdk-pixbuf implementation triggered by the scaling of gif file. Affected versions are < 2.32.1.

Upstream patch:

https://git.gnome.org/browse/gdk-pixbuf/commit/?id=e9a5704edaa9aee9498f1fbf6e1b70fcce2e55aa

CVE request:

http://seclists.org/oss-sec/2015/q4/5

Comment 1 Adam Mariš 2015-10-05 12:09:16 UTC

Reproducer and detailed backtrace can be found here:

http://seclists.org/oss-sec/2015/q4/32

Comment 2 Adam Mariš 2015-10-21 08:27:19 UTC

Created gdk-pixbuf2 tracking bugs for this issue:

Affects: fedora-all [bug 1273775]

Comment 3 Adam Mariš 2015-10-21 08:27:26 UTC

Created mingw-gdk-pixbuf tracking bugs for this issue:

Affects: fedora-all [bug 1273776]

Comment 4 Stefan Cornelius 2015-10-22 12:33:59 UTC

Fedora / RHEL7 are affected in the same way - segfault.

RHEL6 is affected, too, but in a different manner: the process gets into an infinite (or at least very long, >60s) loop. The patch linked in comment #0 does not fix this in RHEL6.

Comment 5 Stefan Cornelius 2015-10-23 12:55:03 UTC

The infinite loop in RHEL6 is annoying but shouldn't qualify as security issue.