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nano: Multiple vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201006-08 / nano
Release Date June 01, 2010
Latest Revision June 01, 2010: 01
Impact normal
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
app-editors/nano < 2.2.4 >= 2.2.4 All supported architectures

Related bugreports: #315355

Synopsis

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

2.  Impact Information

Background

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

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All nano users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References



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Page updated June 01, 2010

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