GLSA 200608-18: Net::Server: Format string vulnerability

http://security.gentoo.org/

Severity:	normal
Title:	Net::Server: Format string vulnerability
Date:	08/10/2006
Bugs:	#142386
ID:	200608-18

Synopsis

A format string vulnerability has been reported in Net::Server which can be exploited to cause a Denial of Service.

Background

Net::Server is an extensible, generic Perl server engine. It is used by several Perl applications like Postgrey.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-perl/net-server	< 0.88	>= 0.88	All supported architectures

Description

The log function of Net::Server does not handle format string specifiers properly before they are sent to syslog.

Impact

By sending a specially crafted datastream to an application using Net::Server, an attacker could cause a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All Net::Server should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-perl/net-server-0.88"

References

CVE-2005-1127

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200608-18.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.