Bug 1631078 – CVE-2018-17101 libtiff: Two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c

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Bug 1631078 - (CVE-2018-17101) CVE-2018-17101 libtiff: Two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c

Summary:	CVE-2018-17101 libtiff: Two out-of-bounds writes in cpTags in tools/tiff2bw.c...

Status:	NEW

Aliases:	CVE-2018-17101

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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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20180916,reported=2...
Keywords:	Security

Depends On:	1631080 1631082 1631084 1632579 1631079 1631083
Blocks:	1631081
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Reported:	2018-09-19 16:29 EDT by Pedro Sampaio
Modified:	2018-10-02 06:18 EDT (History)
CC List:	18 users (show)

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Description Pedro Sampaio 2018-09-19 16:29:54 EDT

An issue was discovered in LibTIFF 4.0.9. There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file.

Upstream issue:

http://bugzilla.maptools.org/show_bug.cgi?id=2807

Upstream patch:

https://gitlab.com/libtiff/libtiff/merge_requests/33/diffs?commit_id=f1b94e8a3ba49febdd3361c0214a1d1149251577

Comment 1 Pedro Sampaio 2018-09-19 16:30:56 EDT

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1631079]


Created mingw-libtiff tracking bugs for this issue:

Affects: epel-7 [bug 1631082]
Affects: fedora-all [bug 1631080]

Comment 3 Huzaifa S. Sidhpurwala 2018-09-25 03:24:27 EDT

Out of bounds write, seems non-exploitable, so mostly crash only.

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