Bug 1185805 (CVE-2014-8127)

Summary:	CVE-2014-8127 libtiff: out-of-bounds read with malformed TIFF image in multiple tools
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	anemec, mhradile, phracek, sisharma, slawomir
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:	2017-08-24 08:35:01 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:	1299918, 1299919, 1299920, 1299921, 1335098, 1335099
Bug Blocks:	1174883, 1316881

Description Vasyl Kaigorodov 2015-01-26 10:42:03 UTC

Multiple out-of-bounds reads were reported in various libtiff tools:

http://bugzilla.maptools.org/show_bug.cgi?id=2500
http://bugzilla.maptools.org/show_bug.cgi?id=2497
http://bugzilla.maptools.org/show_bug.cgi?id=2496
http://bugzilla.maptools.org/show_bug.cgi?id=2485
http://bugzilla.maptools.org/show_bug.cgi?id=2486
http://bugzilla.maptools.org/show_bug.cgi?id=2484

Above upstream bugs were fixed by the below commits:

2014-12-21  Even Rouault  <even.rouault>
* tools/pal2rgb.c, tools/thumbnail.c: fix crash by disabling TIFFTAG_INKNAMES copying. The right fix would be to properly copy it, but not worth the
burden for those esoteric utilities. http://bugzilla.maptools.org/show_bug.cgi?id=2484 (CVE-2014-8127)

2014-12-21  Even Rouault  <even.rouault>
* tools/tiff2bw.c: when Photometric=RGB, the utility only works if SamplesPerPixel = 3. Enforce that http://bugzilla.maptools.org/show_bug.cgi?id=2485 (CVE-2014-8127)

2014-12-21  Even Rouault  <even.rouault>
Fix various crasher bugs on fuzzed images.
* libtiff/tif_dir.c: TIFFSetField(): refuse to set negative values for TIFFTAG_XRESOLUTION and TIFFTAG_YRESOLUTION that cause asserts when writing the directory
* libtiff/tif_dirread.c: TIFFReadDirectory(): refuse to read ColorMap or TransferFunction if BitsPerSample has not yet been read, otherwise reading it later will cause user code to crash if BitsPerSample > 1 
* libtiff/tif_getimage.c: TIFFRGBAImageOK(): return FALSE if LOGLUV with SamplesPerPixel != 3, or if CIELAB with SamplesPerPixel != 3 or BitsPerSample != 8
* libtiff/tif_next.c: in the "run mode", use tilewidth for tiled images instead of imagewidth to avoid crash
* tools/bmp2tiff.c: fix crash due to int overflow related to input BMP dimensions
* tools/tiff2pdf.c: fix crash due to invalid tile count (should likely be checked by libtiff too). Detect invalid settings of BitsPerSample/SamplesPerPixel for CIELAB / ITULAB
* tools/tiffcrop.c: fix crash due to invalid TileWidth/TileHeight
* tools/tiffdump.c: fix crash due to overflow of entry count.

Comment 1 Siddharth Sharma 2015-03-24 09:36:09 UTC

Patch
=====

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=778923

Comment 2 Siddharth Sharma 2015-06-01 11:56:41 UTC

Statement:

Red Hat Product Security has rated this issue as having low security impact, a future update may address this flaw in libtiff.

Comment 9 errata-xmlrpc 2016-08-02 16:40:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1547 https://rhn.redhat.com/errata/RHSA-2016-1547.html

Comment 10 errata-xmlrpc 2016-08-02 16:59:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1546 https://rhn.redhat.com/errata/RHSA-2016-1546.html

Comment 11 Stefan Cornelius 2017-05-11 10:47:46 UTC

*** Bug 1326257 has been marked as a duplicate of this bug. ***