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Sicherheit: Pufferüberlauf in Pixman
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in Pixman
ID: 201612-37
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Di, 13. Dezember 2016, 10:50
Referenzen: http://lists.x.org/archives/xorg-announce/2015-September/002637.html

Originalnachricht

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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <049e6f65-9f2a-f588-4aa3-91b185ae7851@gentoo.org>
Subject: [ GLSA 201612-37 ] Pixman: Buffer overflow

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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201612-37
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Pixman: Buffer overflow
Date: December 13, 2016
Bugs: #561526
ID: 201612-37

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Synopsis
========

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

Background
==========

Pixman is a pixel manipulation library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/pixman < 0.32.8 >= 0.32.8

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

In pixman-general, careless computations done with the 'dest_buffer'
pointer may overflow, failing the buffer upper limit check.

Impact
======

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

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Pixman users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/pixman-0.32.8"

References
==========

[ 1 ] Pixman 0.32.8 Release Notes
http://lists.x.org/archives/xorg-announce/2015-September/002637.html

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

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

https://security.gentoo.org/glsa/201612-37

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 201612-37
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
<a
class=3D"moz-txt-link-freet=
ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</=
a>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Pixman: Buffer overflow
Date: December 13, 2016
Bugs: #561526
ID: 201612-37

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

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

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

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

Pixman is a pixel manipulation library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/pixman &lt; 0.32.8 &gt;=3D
0.=
32.8=20

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

In pixman-general, careless computations done with the 'dest_buffer'
pointer may overflow, failing the buffer upper limit check.

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

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

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 Pixman users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
"&gt;=3Dx11-libs/pixman-0.32.8"

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

[ 1 ] Pixman 0.32.8 Release Notes
<a class=3D"moz-txt-link-freetext" href=3D"http://lists.x.org/archi=
ves/xorg-announce/2015-September/002637.html">http://lists.x.org/archives=
/xorg-announce/2015-September/002637.html</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/201612-37">https://security.gentoo.org/glsa/201612-37</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>
</body>
</html>

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