Bug 1559704 – CVE-2018-8905 libtiff: heap-based buffer overflow in tif_lzw.c:LZWDecodeCompat() allows for denial of service

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Bug 1559704 - (CVE-2018-8905) CVE-2018-8905 libtiff: heap-based buffer overflow in tif_lzw.c:LZWDecodeCompat() allows for denial of service

Summary:	CVE-2018-8905 libtiff: heap-based buffer overflow in tif_lzw.c:LZWDecodeCompa...

Status:	NEW

Aliases:	CVE-2018-8905

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
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Target Release:	---
Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20180317,reported=2...
Keywords:	Security

Depends On:	1559706 1559707 1574548 1559705 1559708 1574549
Blocks:	1559709
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Reported:	2018-03-23 01:08 EDT by Sam Fowler
Modified:	2018-09-27 07:11 EDT (History)
CC List:	7 users (show)

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Description Sam Fowler 2018-03-23 01:08:03 EDT

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 01:08:59 EDT

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 09:32:35 EDT

Any updates on this defect?

Comment 7 Riccardo Schirone 2018-08-07 10:18:23 EDT

What kind of updates are you looking for?

Comment 8 Davor 2018-08-07 10:31:44 EDT

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 10:50:45 EDT

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

Comment 10 Davor 2018-08-07 10:59:35 EDT

(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 11:47:25 EDT

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

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