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Gentoo Linux Security Advisory 201612-31

Gentoo Linux Security Advisory 201612-31
Posted Dec 12, 2016
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201612-31 - Two vulnerabilities have been found in exFAT allowing remote attackers to execute arbitrary code or cause Denial of Service. Versions less than 1.2.1 are affected.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2015-8026
MD5 | 2ce4a3638752378b2b86bb32e70bfbc2

Gentoo Linux Security Advisory 201612-31

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201612-31
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https://security.gentoo.org/
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Severity: Normal
Title: exFAT: Multiple vulnerabilities
Date: December 12, 2016
Bugs: #563936
ID: 201612-31

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Synopsis
========

Two vulnerabilities have been found in exFAT allowing remote attackers
to execute arbitrary code or cause Denial of Service.

Background
==========

A full-featured exFAT file system implementation for Unix-like systems.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-fs/exfat-utils < 1.2.1 >= 1.2.1

Description
===========

Two vulnerabilities were found in exFAT. A malformed input can cause a
write heap overflow or cause an endless loop.

Impact
======

Remote attackers could execute arbitrary code or cause Denial of
Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All exFAT users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-fs/exfat-utils-1.2.1"

References
==========

[ 1 ] CVE-2015-8026
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8026
[ 2 ] Heap overflow and endless loop in exfatfsck / exfat-utils

http://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201612-31

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2016 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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