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[gentoo-announce] [ GLSA 201311-11 ] CTorrent: User-assisted arbitrary code execution

Posted on 20 November 2013
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201311-11
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http://security.gentoo.org/
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Severity: Normal
Title: CTorrent: User-assisted arbitrary code execution
Date: November 20, 2013
Bugs: #266953
ID: 201311-11

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Synopsis
========
A stack-based buffer overflow in CTorrent might allow a remote attacker
to execute arbitrary code or cause a Denial of Service condition.

Background
==========
CTorrent is a BitTorrent client implemented in C++ to be lightweight
and quick.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-p2p/ctorrent < 3.3.2-r1 >= 3.3.2-r1

Description
===========
CTorrent contains a stack-based buffer overflow in the
btFiles::BuildFromMI function in trunk/btfiles.cpp.

Impact
======
A remote attacker could entice a user to open a specially crafted
torrent file using CTorrent, possibly resulting in execution of
arbitrary code with the privileges of the process or a Denial of
Service condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All CTorrent users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-p2p/ctorren-3.3.2-r1"

References
==========
[ 1 ] CVE-2009-1759
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-1759

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201311-11.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.

License
=======
Copyright 2013 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


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