KVIrc: Remote arbitrary code execution — GLSA 200709-02

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

Affected Packages

net-irc/kvirc on all architectures
Affected versions < 3.2.6_pre20070714
Unaffected versions >= 3.2.6_pre20070714

Background

KVIrc is a free portable IRC client based on Qt.

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

Release Date
September 13, 2007

Latest Revision
September 13, 2007: 01

Severity
normal

Exploitable
remote

Bugzilla entries