Bug 1325095 – CVE-2016-3632 libtiff: out-of-bounds write in _TIFFVGetField function

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Bug 1325095 - (CVE-2016-3632) CVE-2016-3632 libtiff: out-of-bounds write in _TIFFVGetField function

Summary:	CVE-2016-3632 libtiff: out-of-bounds write in _TIFFVGetField function

Status:	CLOSED ERRATA

Aliases:	CVE-2016-3632

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=20160408,repor...
Keywords:	Security

Depends On:	1299920 1299921 1335098 1335099
Blocks:	1316881
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Reported:	2016-04-08 04:30 EDT by Andrej Nemec
Modified:	2017-08-24 04:35 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-08-24 04:35:06 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:1546	normal	SHIPPED_LIVE	Important: libtiff security update	2016-08-02 16:59:03 EDT
Red Hat Product Errata	RHSA-2016:1547	normal	SHIPPED_LIVE	Important: libtiff security update	2016-08-02 16:39:45 EDT

Groups: None (edit)

Description Andrej Nemec 2016-04-08 04:30:39 EDT

Out-of-bounds write vulnerability was found in _TIFFVGetField function in tif_dirinfo.c, allowing attacker to cause a denial of service or command execution via a crafted TIFF image.

Vulnerable code:

libtiff/tif_dir.c:1073
1068          if (fip->field_type == TIFF_ASCII
1069              || fip->field_readcount == TIFF_VARIABLE
1070              || fip->field_readcount == TIFF_VARIABLE2
1071              || fip->field_readcount == TIFF_SPP
1072              || tv->count > 1) {
1073                 *va_arg(ap, void **) = tv->value;
1074                 ret_val = 1;


Public via:

http://seclists.org/oss-sec/2016/q2/33

Upstream bug:
http://bugzilla.maptools.org/show_bug.cgi?id=2549

Comment 4 errata-xmlrpc 2016-08-02 12:41:50 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1547 https://rhn.redhat.com/errata/RHSA-2016-1547.html

Comment 5 errata-xmlrpc 2016-08-02 13:01:13 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1546 https://rhn.redhat.com/errata/RHSA-2016-1546.html

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