Bug 1529524 (CVE-2017-17942)

Summary:	CVE-2017-17942 libtiff: Heap-based buffer overflow in PackBitsEncode function in tif_packbits.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	erik-fedora, mike, nforro, phracek, tgl
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 03:35:46 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:	1529525, 1529526, 1529527, 1529528
Bug Blocks:

Description Pedro Sampaio 2017-12-28 14:07:59 UTC

A flaw was foung in LibTIFF 4.0.9. There is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c that could lead to information disclosure and denial of service.

Upstream bug:

http://bugzilla.maptools.org/show_bug.cgi?id=2767

Comment 1 Pedro Sampaio 2017-12-28 14:08:56 UTC

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1529528]


Created mingw-libtiff tracking bugs for this issue:

Affects: epel-7 [bug 1529526]
Affects: fedora-all [bug 1529525]