Bug 1559704 (CVE-2018-8905)

Summary:	CVE-2018-8905 libtiff: heap-based buffer overflow in tif_lzw.c:LZWDecodeCompat() allows for denial of service
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dodevski, erik-fedora, mike, nforro, phracek, rschiron, 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:	2019-08-06 19:18:37 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:	1559705, 1559706, 1559707, 1559708, 1574548, 1574549
Bug Blocks:	1559709

Description Sam Fowler 2018-03-23 05:08:03 UTC

LibTIFF since version 3.9.0 is vulnerable to a heap-based buffer overflow in the
tif_lzw.c:LZWDecodeCompat() function. An attacker could exploit this to cause a
denial of service via crafted TIF file.


Upstream Issue:
http://bugzilla.maptools.org/show_bug.cgi?id=2780

Additional References:
https://github.com/halfbitteam/POCs/tree/master/libtiff-4.08_tiff2ps_heap_overflow

Comment 1 Sam Fowler 2018-03-23 05:08:59 UTC

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1559705]


Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1559706]
Affects: epel-7 [bug 1559707]

Comment 6 Davor 2018-08-07 13:32:35 UTC

Any updates on this defect?

Comment 7 Riccardo Schirone 2018-08-07 14:18:23 UTC

What kind of updates are you looking for?

Comment 8 Davor 2018-08-07 14:31:44 UTC

Maybe I cannot access all the dependent pages. Is there a workaround or some mitigation recommendation that we can apply?

Comment 9 Riccardo Schirone 2018-08-07 14:50:45 UTC

Upstream patch:
https://gitlab.com/libtiff/libtiff/commit/58a898cb4459055bb488ca815c23b880c242a27d

Comment 10 Davor 2018-08-07 14:59:35 UTC

(In reply to Riccardo Schirone from comment #9)
> Upstream patch:
> https://gitlab.com/libtiff/libtiff/commit/
> 58a898cb4459055bb488ca815c23b880c242a27d

Thank You so much!

Comment 11 Riccardo Schirone 2018-08-07 15:47:25 UTC

Updated packages have been already pushed on Fedora 27 and Fedora 28.
For RHEL, a future update may address this issue.

Comment 12 errata-xmlrpc 2019-08-06 12:08:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2053 https://access.redhat.com/errata/RHSA-2019:2053

Comment 13 Product Security DevOps Team 2019-08-06 19:18:37 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-8905