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[gentoo-announce] [ GLSA 201006-08 ] nano: Multiple vulnerabilities

Posted on 01 June 2010
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201006-08
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http://security.gentoo.org/
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Severity: Normal
Title: nano: Multiple vulnerabilities
Date: June 01, 2010
Bugs: #315355
ID: 201006-08

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Synopsis
========
Race conditions when editing files could lead to symlink attacks or
changes of ownerships of important files.

Background
==========
nano is a GNU GPL'd Pico clone with more functionality.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-editors/nano < 2.2.4 >= 2.2.4

Description
===========
Multiple race condition vulnerabilities have been discovered in nano.
For further information please consult the CVE entries referenced
below.

Impact
======
Under certain conditions, a local, user-assisted attacker could
possibly overwrite arbitrary files via a symlink attack on an
attacker-owned file that is being edited by the victim, or change the
ownership of arbitrary files.

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

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-editors/nano-2.2.4"

References
==========
[ 1 ] CVE-2010-1160
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1160
[ 2 ] CVE-2010-1161
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1161

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

http://security.gentoo.org/glsa/glsa-201006-08.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 2010 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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