GLSA 201311-19: rssh: Access restriction bypass

http://security.gentoo.org/

Severity:	normal
Title:	rssh: Access restriction bypass
Date:	11/28/2013
Bugs:	#415255, #445166
ID:	201311-19

Synopsis

Multiple vulnerabilities have been found in rssh, allowing local attackers to bypass access restrictions.

Background

rssh is a restricted shell, allowing only a few commands like scp or sftp. It is often used as a complement to OpenSSH to provide limited access to users.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-shells/rssh	< 2.3.4	>= 2.3.4	All supported architectures

Description

Multiple command line parsing and validation vulnerabilities have been discovered in rssh. Please review the CVE identifiers referenced below for details.

Impact

Multiple parsing and validation vulnerabilities can cause the restrictions set up by rssh to be bypassed.

Workaround

There is no known workaround at this time.

Resolution

All rssh users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-shells/rssh-2.3.4"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201311-19.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.