Bug 803078 (CVE-2012-1173)

Summary:	CVE-2012-1173 libtiff: Heap-buffer overflow due to TileSize calculation when parsing tiff files
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	hhorak, kvolny, scorneli, 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:	2014-02-10 18:51:45 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:	808551, 808552, 808553, 808554, 810116, 810118, 836127
Bug Blocks:

Description Vincent Danen 2012-03-13 21:35:29 UTC

A flaw was found in the way that LibTIFF attempted to allocate space for a tile within a TIFF image file.  When calculating the size for a buffer, LibTIFF performs a multiply that can cause an integer overflow.  After allocation, LibTIFF will initialize the buffer with the tile data, which can cause code execution under the context of the application using LibTIFF, and with the calling user's permissions.

http://bugzilla.maptools.org/show_bug.cgi?id=2369

Comment 2 Huzaifa S. Sidhpurwala 2012-03-14 09:22:50 UTC

http://bugzilla.maptools.org/show_bug.cgi?id=2369

Note: Segfault seen on 32 bit only.

RHEL6 - x86_65
==============
[root@dhcp201-201 ~]# tifftopnm poc.tif 
poc.tif: Integer overflow in TIFFVTileSize.
TIFFReadDirectory: poc.tif: cannot handle zero tile size.
tifftopnm: error opening TIFF file poc.tif

[root@dhcp201-201 ~]# arch
x86_64

RHEL6 - x86
===========
[root@rhel6-server-x32 ~]# tifftopnm poc.tif 
tifftopnm: writing PPM file
P6
800 607
255
Segmentation fault

[root@rhel6-server-x32 ~]# arch
i686

Comment 15 Vincent Danen 2012-03-30 17:46:02 UTC

This is to be embargoed until April 4th at 1pm PST.

Comment 16 Huzaifa S. Sidhpurwala 2012-04-05 08:17:14 UTC

Created libtiff tracking bugs for this issue

Affects: fedora-all [bug 810116]

Comment 17 Huzaifa S. Sidhpurwala 2012-04-05 08:17:18 UTC

Created mingw32-libtiff tracking bugs for this issue

Affects: fedora-all [bug 810118]

Comment 23 errata-xmlrpc 2012-04-10 20:10:35 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:0468 https://rhn.redhat.com/errata/RHSA-2012-0468.html

Comment 24 Fedora Update System 2012-04-12 02:24:17 UTC

libtiff-3.9.5-3.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 25 Fedora Update System 2012-04-18 19:27:34 UTC

libtiff-3.9.5-3.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 26 Fedora Update System 2012-04-22 03:26:55 UTC

libtiff-3.9.5-3.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.