GLSA 200703-28: CUPS: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	CUPS: Denial of Service
Date:	03/31/2007
Bugs:	#170881
ID:	200703-28

Synopsis

CUPS incorrectly handles partially-negotiated SSL connections allowing for a Denial of Service.

Background

CUPS provides a portable printing layer for UNIX-based operating systems.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-print/cups	< 1.2.9	>= 1.2.9	All supported architectures

Description

CUPS does not properly handle partially-negotiated SSL connections. Upon receiving a partially-negotiated SSL connection, CUPS no longer accepts further incoming connections, as the initial connection never times out.

Impact

An attacker could partially negotiate an SSL connection with a CUPS server, and cause future connections to that server to fail, resulting in a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All CUPS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-print/cups-1.2.9"

References

CVE-2007-0720

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200703-28.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.