GLSA 201203-06: sudo: Privilege escalation

http://security.gentoo.org/

Severity:	high
Title:	sudo: Privilege escalation
Date:	03/06/2012
Bugs:	#351490, #401533
ID:	201203-06

Synopsis

Two vulnerabilities have been discovered in sudo, allowing local attackers to possibly gain escalated privileges.

Background

sudo allows a system administrator to give users the ability to run commands as other users.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-admin/sudo	< 1.8.3_p2	>= 1.8.3_p2	All supported architectures

Description

Two vulnerabilities have been discovered in sudo:

When the sudoers file is configured with a Runas group, sudo does not prompt for a password when changing to the new group (CVE-2011-0010).
A format string vulnerability exists in the "sudo_debug()" function (CVE-2012-0809).

Impact

A local attacker could possibly gain the ability to run arbitrary commands with the privileges of other users or groups, including root.

Workaround

There is no known workaround at this time.

Resolution

All sudo users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.3_p2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201203-06.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.