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

From: Raphael Marichez <falco(at)gentoo.org>
Date: Thu Sep 13 2007 - 14:56:35 EDT

• - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200709-02
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  Severity: Normal
     Title: KVIrc: Remote arbitrary code execution
      Date: September 13, 2007
      Bugs: #183174
        ID: 200709-02

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Synopsis

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

Background

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KVIrc is a free portable IRC client based on Qt.

Affected packages

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     Package / Vulnerable / Unaffected

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  1 net-irc/kvirc < 3.2.6_pre20070714 >= 3.2.6_pre20070714

Description

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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

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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

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There is no known workaround at this time.

Resolution

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All KVIrc users should upgrade to the latest version:

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

References

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  [ 1 ] CVE-2007-2951
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2951

Availability

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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?

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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 http://bugs.gentoo.org.

License

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Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

Received on Thu Sep 13 15:05:09 2007