GLSA 201209-19: NUT: Arbitrary code execution

http://security.gentoo.org/

Severity:	high
Title:	NUT: Arbitrary code execution
Date:	09/27/2012
Bugs:	#419377
ID:	201209-19

Synopsis

A buffer overflow in NUT might allow remote attackers to execute arbitrary code.

Background

The Network UPS Tools (NUT) provide support for power devices.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
sys-power/nut	< 2.6.3	>= 2.6.3	All supported architectures

Description

An error in the addchar() function in parseconf.c may cause a buffer overflow.

Impact

A remote attacker could send a specially crafted string to upsd, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All NUT users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-power/nut-2.6.3"

References

CVE-2012-2944

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201209-19.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.