Bug 1565166

Summary:	libtiff: Use After Free in the t2p_writeproc function in tools/tiff2pdf.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	develacker, 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:	2021-10-21 20:00:02 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:	1630005, 1630030, 1630031, 1630032, 1630033, 1911024
Bug Blocks:	1565172

Description Laura Pardo 2018-04-09 14:26:10 UTC

A flaw was found in LibTIFF 4.0.9, there is a Use-After-Free(UAF)in the t2p_writeproc function in tools/tiff2pdf.c. An attacker could exploit this via crafted TIFF file to cause a denial of service or possibly have unspecified other impact.


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1562824

Comment 1 Andrej Nemec 2018-07-02 14:13:48 UTC

*** Bug 1562824 has been marked as a duplicate of this bug. ***

Comment 5 Scott Gayou 2018-09-17 20:08:57 UTC

Looks to have very low impact.

Reported upstream, no acknowledgement from upstream as of yet. Guessing it slipped past the radar or they judged it very low priority.

Interestingly, doesn't appear to affect Fedora 28, so unclear if it was stealth patched accidentally fixed via refactoring.

Comment 6 Scott Gayou 2018-09-17 20:09:42 UTC

Upstream Bug Report:
http://bugzilla.maptools.org/show_bug.cgi?id=2796

Comment 7 Scott Gayou 2018-09-17 20:10:20 UTC

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1630031]


Created mingw-libtiff tracking bugs for this issue:

Affects: epel-7 [bug 1630030]
Affects: fedora-all [bug 1630032]