GLSA 200710-26: HPLIP: Privilege escalation

http://security.gentoo.org/

Severity:	high
Title:	HPLIP: Privilege escalation
Date:	10/24/2007
Bugs:	#195565
ID:	200710-26

Synopsis

The hpssd daemon might allow local attackers to execute arbitrary commands with root privileges.

Background

The Hewlett-Packard Linux Imaging and Printing system (HPLIP) provides drivers for HP's inkjet and laser printers, scanners and fax machines. It integrates with the Common UNIX Printing System (CUPS) and Scanner Access Now Easy (SANE).

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-print/hplip	< 2.7.9-r1	>= 1.7.4a-r2	All supported architectures

Description

Kees Cook from the Ubuntu Security team discovered that the hpssd daemon does not correctly validate user supplied data before passing it to a "popen3()" call.

Impact

A local attacker may be able to exploit this vulnerability by sending a specially crafted request to the hpssd daemon to execute arbitrary commands with the privileges of the user running hpssd, usually root.

Workaround

There is no known workaround at this time.

Resolution

All HPLIP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose "net-print/hplip"

References

CVE-2007-5208

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-26.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.