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HistoryJun 02, 2010 - 12:00 a.m.

[ GLSA 201006-08 ] nano: Multiple vulnerabilities

2010-06-0200:00:00
vulners.com
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Gentoo Linux Security Advisory GLSA 201006-08


                                        http://security.gentoo.org/

Severity: Normal
Title: nano: Multiple vulnerabilities
Date: June 01, 2010
Bugs: #315355
ID: 201006-08


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 &quot;&gt;=app-editors/nano-2.2.4&quot;

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
[email protected] 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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