Bug 1397765 – CVE-2016-9538 libtiff: Integer overflow leads to reading undefined buffer in readContigStripsIntoBuffer()

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Bug 1397765 - (CVE-2016-9538) CVE-2016-9538 libtiff: Integer overflow leads to reading undefined buffer in readContigStripsIntoBuffer()

Summary:	CVE-2016-9538 libtiff: Integer overflow leads to reading undefined buffer in ...

Status:	CLOSED WONTFIX

Aliases:	CVE-2016-9538

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

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20161008,repor...
Keywords:	Security

Depends On:	1397783 1397781 1397782
Blocks:	1397777
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Reported:	2016-11-23 05:24 EST by Adam Mariš
Modified:	2017-03-09 00:32 EST (History)
CC List:	4 users (show)

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Last Closed:	2017-01-17 03:24:09 EST
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Description Adam Mariš 2016-11-23 05:24:25 EST

It was found that tools/tiffcrop.c in libtiff 4.0.6 reads an undefined buffer in readContigStripsIntoBuffer() because of a uint16 integer overflow.

Upstream patch:

https://github.com/vadz/libtiff/commit/43c0b81a818640429317c80fea1e66771e85024b#diff-c8b4b355f9b5c06d585b23138e1c185f

Comment 1 Adam Mariš 2016-11-23 05:55:37 EST

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1397781]

Comment 2 Adam Mariš 2016-11-23 05:55:43 EST

Created mingw-libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1397782]
Affects: epel-7 [bug 1397783]

Comment 3 Huzaifa S. Sidhpurwala 2017-03-09 00:32:37 EST

Statement:

This is an Out-of-bounds read flaw in the libtiff library. A specially-crafted image can cause an application linked with the libtiff library to crash.

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