Sicherheit: Zwei Probleme in Squashfs

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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <ad4b4410-4e78-ce5b-eee6-671113c78a3c@gentoo.org>
Subject: [ GLSA 201612-40 ] SQUASHFS: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 201612-40
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https://security.gentoo.org/
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Severity: Normal
Title: SQUASHFS: Multiple vulnerabilities
Date: December 13, 2016
Bugs: #427356
ID: 201612-40

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Synopsis
========

Multiple vulnerabilities have been found in SQUASHFS, the worst of
which may allow execution of arbitrary code.

Background
==========

Squashfs is a compressed read-only filesystem for Linux. Squashfs is
intended for general read-only filesystem use, for archival use (i.e.
in cases where a .tar.gz file may be used), and in constrained block
device/memory systems (e.g. embedded systems) where low overhead is
needed.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 squashfs-tools < 4.3 >= 4.3

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

Multiple vulnerabilities have been discovered in SQUASHFS. Please
review the CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user to open a specially crafted .sqsh
file using unsquashfs; possibly resulting in the execution of arbitrary
code with the privileges of the process, or a Denial of Service
condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All squashfs-tools users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=squashfs-tools-4.3"

References
==========

[ 1 ] CVE-2012-4024
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4024
[ 2 ] CVE-2012-4025
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4025

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

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

https://security.gentoo.org/glsa/201612-40

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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Gentoo Linux Security Advisory GLSA 201612-40
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<a
class=3D"moz-txt-link-freet=
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a>
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Severity: Normal
Title: SQUASHFS: Multiple vulnerabilities
Date: December 13, 2016
Bugs: #427356
ID: 201612-40

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

Multiple vulnerabilities have been found in SQUASHFS, the worst of
which may allow execution of arbitrary code.

Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Squashfs is a compressed read-only filesystem for Linux. Squashfs is
intended for general read-only filesystem use, for archival use (i.e.
in cases where a .tar.gz file may be used), and in constrained block
device/memory systems (e.g. embedded systems) where low overhead is
needed.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 squashfs-tools < 4.3
>=3D=
4.3=20

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Multiple vulnerabilities have been discovered in SQUASHFS. Please
review the CVE identifiers referenced below for details.

Impact
=3D=3D=3D=3D=3D=3D

A remote attacker could entice a user to open a specially crafted .sqsh
file using unsquashfs; possibly resulting in the execution of arbitrary
code with the privileges of the process, or a Denial of Service
condition.

Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

There is no known workaround at this time.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All squashfs-tools users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dsquashfs-tools-4.3"

References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

[ 1 ] CVE-2012-4024
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2012-4024">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
12-4024</a>
[ 2 ] CVE-2012-4025
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2012-4025">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
12-4025</a>

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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

<a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g=
lsa/201612-40">https://security.gentoo.org/glsa/201612-40</a>

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

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
<a class=3D"moz-txt-link-abbreviated"
href=3D"mailto:security@gentoo.org"=
>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https=
://bugs.gentoo.org</a>.

License
=3D=3D=3D=3D=3D=3D=3D

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.

<a class=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic=
enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre>
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