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[gentoo-announce] [ GLSA 201311-21 ] cpio: Arbitrary code execution

Posted on 28 November 2013
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201311-21
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http://security.gentoo.org/
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Severity: Normal
Title: cpio: Arbitrary code execution
Date: November 28, 2013
Bugs: #314663
ID: 201311-21

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Synopsis
========
A heap-based buffer overflow in cpio might allow a remote rmt server to
execute arbitrary code or cause a Denial of Service condition.

Background
==========
GNU cpio copies files into or out of a cpio or tar archive.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/cpio < 2.11 >= 2.11

Description
===========
Cpio contains a heap-based buffer overflow in the rmt_read__ function
in lib/rtapelib.c.

Impact
======
A remote server could sending more data than was requested, related to
archive filenames that contain a : (colon) character, possibly
resulting in execution of arbitrary code or a Denial of Service
condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All cpio users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/cpio-2.11"

References
==========
[ 1 ] CVE-2010-0624
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0624

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

http://security.gentoo.org/glsa/glsa-201311-21.xml

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 2013 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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