Bug 813796

Summary:	libtiff: (Heap-based) Array index error leading to NULL pointer dereference by parsing registered tags information
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	security-response-team, tgl
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2012-06-18 08:30:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Jan Lieskovsky 2012-04-18 12:58:17 UTC

An array index error, leading to out-of heap-based buffer read and subsequent NULL pointer dereference flaw was found in the way libtiff, library of functions for manipulating TIFF image format files, performed processing of tags information (checking for data type) by reading certain TIFF images. A remote attacker could provide a specially-crafted TIFF image file, which once processed in an application, linked against libtiff, would lead to that application crash.

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668087

Comment 7 Huzaifa S. Sidhpurwala 2012-06-18 08:30:14 UTC

The maximum impact of this flaw would be application crash (which is linked against libtiff) due to NULL pointer de-reference and therefore is not exploitable.

Statement:

Red Hat does not consider crash of end user application (such as application linked against libtiff) to be a security flaw.