Sicherheit: Ausführen beliebiger Kommandos in XDelta

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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <52e27d0d-c312-c8c8-05b8-fe8be2652b62@gentoo.org>
Subject: [ GLSA 201701-40 ] xdelta: User-assisted execution of arbitrary code

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Gentoo Linux Security Advisory GLSA 201701-40
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https://security.gentoo.org/
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Severity: Normal
Title: xdelta: User-assisted execution of arbitrary code
Date: January 17, 2017
Bugs: #574408
ID: 201701-40

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Synopsis
========

A buffer overflow in xdelta might allow remote attackers to execute
arbitrary code.

Background
==========

Xdelta is a C library and command-line tool for delta compression using
VCDIFF/RFC 3284 streams.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-util/xdelta < 3.0.10 >= 3.0.10

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

A buffer overflow can be triggered within xdelta when ran against a
malicious input file.

Impact
======

A remote attacker could coerce the victim to run xdelta against a
malicious input file. This may be leveraged by an attacker to crash
xdelta and gain control of program execution.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xdelta users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/xdelta-3.0.10"

References
==========

[ 1 ] CVE-2014-9765
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9765

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

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

https://security.gentoo.org/glsa/201701-40

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 2017 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 201701-40
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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: xdelta: User-assisted execution of arbitrary code
Date: January 17, 2017
Bugs: #574408
ID: 201701-40

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

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

A buffer overflow in xdelta might allow remote attackers to execute
arbitrary code.

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

Xdelta is a C library and command-line tool for delta compression using
VCDIFF/RFC 3284 streams.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-util/xdelta < 3.0.10 >=3D
3.=
0.10=20

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

A buffer overflow can be triggered within xdelta when ran against a
malicious input file.

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

A remote attacker could coerce the victim to run xdelta against a
malicious input file. This may be leveraged by an attacker to crash
xdelta and gain control of program execution.

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 xdelta users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=3Ddev-util/xdelta-3.0.10"

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

[ 1 ] CVE-2014-9765
<a class=3D"moz-txt-link-freetext" href=3D"http://cve.mitre.org/cgi=
-bin/cvename.cgi?name=3DCVE-2014-9765">http://cve.mitre.org/cgi-bin/cvena=
me.cgi?name=3DCVE-2014-9765</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/201701-40">https://security.gentoo.org/glsa/201701-40</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 2017 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>
</body>
</html>

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