Bug 1416410 – CVE-2016-10164 libXpm: Out-of-bounds write in XPM extension parsing

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Bug 1416410 - (CVE-2016-10164) CVE-2016-10164 libXpm: Out-of-bounds write in XPM extension parsing

Summary:	CVE-2016-10164 libXpm: Out-of-bounds write in XPM extension parsing

Status:	NEW

Aliases:	CVE-2016-10164

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=20161212,repor...
Keywords:	Security

Depends On:	1416442 1431946
Blocks:	1416412
	Show dependency tree / graph

Reported:	2017-01-25 07:56 EST by Andrej Nemec
Modified:	2017-08-01 12:04 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	libXpm 3.5.12
Doc Type:	If docs needed, set a value
Doc Text:	An integer overflow flaw leading to a heap-based buffer overflow was found in libXpm. An attacker could use this flaw to crash an application using libXpm via a specially crafted XPM file.
Story Points:	---
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Environment:
Last Closed:
Type:	---
Regression:	---
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Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:1865	normal	SHIPPED_LIVE	Moderate: X.org X11 libraries security, bug fix and enhancement update	2017-08-01 13:50:43 EDT

Groups: None (edit)

Description Andrej Nemec 2017-01-25 07:56:31 EST

An out of boundary write has been found in libXpm which can be exploited by an attacker through maliciously crafted XPM files.

The affected code is prone to two 32 bit integer overflows while parsing extensions: the amount of extensions and their concatenated length.

References:

http://seclists.org/oss-sec/2017/q1/167

Upstream patch:

https://cgit.freedesktop.org/xorg/lib/libXpm/commit/?id=d1167418f0fd02a27f617ec5afd6db053afbe185

Comment 1 Andrej Nemec 2017-01-25 08:52:17 EST

Created libXpm tracking bugs for this issue:

Affects: fedora-24 [bug 1416442]

Comment 4 errata-xmlrpc 2017-08-01 12:04:12 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1865 https://access.redhat.com/errata/RHSA-2017:1865

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