GLSA 200709-02: KVIrc: Remote arbitrary code execution

http://security.gentoo.org/

Severity:	normal
Title:	KVIrc: Remote arbitrary code execution
Date:	09/13/2007
Bugs:	#183174
ID:	200709-02

Synopsis

A vulnerability has been discovered in KVIrc, allowing for the remote execution of arbitrary code.

Background

KVIrc is a free portable IRC client based on Qt.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-irc/kvirc	< 3.2.6_pre20070714	>= 3.2.6_pre20070714	All supported architectures

Description

Stefan Cornelius from Secunia Research discovered that the "parseIrcUrl()" function in file src/kvirc/kernel/kvi_ircurl.cpp does not properly sanitise parts of the URI when building the command for KVIrc's internal script system.

Impact

A remote attacker could entice a user to open a specially crafted irc:// URI, possibly leading to the remote execution of arbitrary code with the privileges of the user running KVIrc. Successful exploitation requires that KVIrc is registered as the default handler for irc:// or similar URIs.

Workaround

There is no known workaround at this time.

Resolution

All KVIrc users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-irc/kvirc-3.2.6_pre20070714"

References

CVE-2007-2951

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200709-02.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.