Bug 1474356 (CVE-2017-11335)

Summary:	CVE-2017-11335 libtiff: Heap-based buffer overflow in tiff2pdf
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	erik-fedora, mike, nforro, phracek, rasanche, sardella
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A heap-based buffer overflow flaw was found within libtiff's tiff2pdf tool. A remote attacker could potentially exploit this flaw to execute arbitrary code by tricking a user into converting a specially crafted file using the tiff2pdf tool.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-28 10:52:52 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:	1474372, 1474373, 1474374, 1910612
Bug Blocks:	1474358

Description Adam Mariš 2017-07-24 12:50:05 UTC

There is a heap based buffer overflow in tools/tiff2pdf.c of LibTIFF
4.0.8 via a PlanarConfig=Contig image, which causes a more than one
hundred bytes out-of-bounds write (related to the ZIPDecode function in
tif_zip.c). A crafted input may lead to a remote denial of service
attack or an arbitrary code execution attack.

Upstream bug:

http://bugzilla.maptools.org/show_bug.cgi?id=2715


Upstream patch:
https://github.com/vadz/libtiff/commit/69bfeec247899776b1b396651adb47436e5f1556

Comment 1 Adam Mariš 2017-07-24 13:25:38 UTC

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1474373]


Created mingw-libtiff tracking bugs for this issue:

Affects: epel-7 [bug 1474372]
Affects: fedora-all [bug 1474374]

Comment 3 Raphael Sanchez Prudencio 2017-07-28 10:53:01 UTC

Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.