Bug 834627 (CVE-2012-3236)

Summary:	CVE-2012-3236 gimp: NULL pointer deref crash when reading FIT file with crafted XTENSION header
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	nphilipp, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-29 11:31:32 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:	836517
Bug Blocks:	834633

Description Jan Lieskovsky 2012-06-22 15:47:15 UTC

A denial of service flaw was found in the way GIMP, GNU Image Manipulation Program, processed certain FIT format files. A remote attacker could provide a FIT format file with specially-crafted value of the 'XTENSION' header that, when opened would cause the gimp executable to crash.

References:
[1] http://www.reactionpenetrationtesting.co.uk/advisories/FIT-handling-DoS.html
[2] http://www.reactionpenetrationtesting.co.uk/advisories/vuln.fit

Comment 3 Jan Lieskovsky 2012-06-22 16:00:02 UTC

Acknowledgements:

Red Hat would like to thank Joseph Sheridan for reporting this issue.

Comment 4 Tomas Hoger 2012-06-22 17:51:00 UTC

Upstream bug and commit:
https://bugzilla.gnome.org/show_bug.cgi?id=676804
http://git.gnome.org/browse/gimp/commit/plug-ins/file-fits/fits-io.c?id=ace45631595e8781a1420842582d67160097163c

Comment 6 Stefan Cornelius 2012-06-29 11:27:55 UTC

Public now:
http://www.openwall.com/lists/oss-security/2012/06/29/3

Comment 7 Stefan Cornelius 2012-06-29 11:30:22 UTC

Created gimp tracking bugs for this issue

Affects: fedora-all [bug 836517]

Comment 8 Stefan Cornelius 2012-06-29 11:31:10 UTC

Statement:

We do not consider a user-assisted crash of a client application such as Gimp to be a security issue.