Bug 1530440 – CVE-2017-18013 libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDirectory() causes crash

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Bug 1530440 - (CVE-2017-18013) CVE-2017-18013 libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDirectory() causes crash

Summary:	CVE-2017-18013 libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDire...

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-18013

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
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20171229,repor...
Keywords:	Security

Depends On:	1530441
Blocks:	1530443
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Reported:	2018-01-02 23:01 EST by Sam Fowler
Modified:	2018-01-08 00:42 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	libtiff 4.0.9-3
Doc Type:	If docs needed, set a value
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Environment:
Last Closed:	2018-01-08 00:42:09 EST
Type:	---
Regression:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Sam Fowler 2018-01-02 23:01:56 EST

LibTIFF 4.0.9 is vulnerable to a crash caused by a NULL pointer dereference in the TIFFPrintDirectory function in tif_print.c. An attacker could exploit this by supplying a specially crafted TIFF image, leading to a denial of service.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-18013
http://www.cvedetails.com/cve/CVE-2017-18013/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18013
https://gitlab.com/libtiff/libtiff/commit/c6f41df7b581402dfba3c19a1e3df4454c551a01
http://bugzilla.maptools.org/show_bug.cgi?id=2770

Comment 1 Sam Fowler 2018-01-02 23:03:12 EST

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1530441]

Comment 2 Huzaifa S. Sidhpurwala 2018-01-08 00:41:27 EST

It seems this flaw is triggered by the following changeset:
https://gitlab.com/libtiff/libtiff/commit/7057734d986001b7fd6d2afde9667da7754ff2cc

This was introduced in tiff-4.0.9, therefore older versions are not affected.

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