Sicherheit: Zwei Probleme in Busybox

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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <39b280b4-de73-14ba-cf7f-eb7795d3bd05@gentoo.org>
Subject: [ GLSA 201612-04 ] BusyBox: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 201612-04
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https://security.gentoo.org/
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Severity: Normal
Title: BusyBox: Multiple vulnerabilities
Date: December 04, 2016
Bugs: #564246, #577610
ID: 201612-04

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Synopsis
========

Multiple vulnerabilities have been found in BusyBox, the worst of which
allows remote attackers to execute arbitrary code.

Background
==========

BusyBox is a set of tools for embedded systems and is a replacement for
GNU Coreutils.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/busybox < 1.24.2 >= 1.24.2

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

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

Impact
======

A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time. However, on Gentoo, the
remote code execution vulnerability can be avoided if you don't use
BusyBox's udhcpc or build the package without the "ipv6" USE flag
enabled.

Resolution
==========

All BusyBox users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.24.2"

References
==========

[ 1 ] CVE-2016-2147
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2147
[ 2 ] CVE-2016-2148
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2148

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

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

https://security.gentoo.org/glsa/201612-04

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 201612-04
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<a
class=3D"moz-txt-link-freet=
ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</=
a>
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Severity: Normal
Title: BusyBox: Multiple vulnerabilities
Date: December 04, 2016
Bugs: #564246, #577610
ID: 201612-04

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

Multiple vulnerabilities have been found in BusyBox, the worst of which
allows remote attackers to execute arbitrary code.

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

BusyBox is a set of tools for embedded systems and is a replacement for
GNU Coreutils.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/busybox < 1.24.2 >=3D
1.=
24.2=20

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

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

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

A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.

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

There is no known workaround at this time. However, on Gentoo, the
remote code execution vulnerability can be avoided if you don't use
BusyBox's udhcpc or build the package without the "ipv6" USE flag
enabled.

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

All BusyBox users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=3Dsys-apps/busybox-1.24.2"

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

[ 1 ] CVE-2016-2147
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2016-2147">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
16-2147</a>
[ 2 ] CVE-2016-2148
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2016-2148">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
16-2148</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/201612-04">https://security.gentoo.org/glsa/201612-04</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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