[ GLSA 200709-02 ] KVIrc: Remote arbitrary code execution

[GLSA]

Gentoo Linux Security Advisory

Title: KVIrc: Remote arbitrary code execution (GLSA 200709-02)
Severity: normal
Exploitable: remote
Date: September 13, 2007
Bug(s): #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: net-irc/kvirc
Vulnerable: < 3.2.6_pre20070714
Unaffected: >= 3.2.6_pre20070714
Architectures: 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: