A new security update has been released for Gentoo Linux - aria2: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 201001-06
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http://security.gentoo.org/
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Severity: Normal
Title: aria2: Multiple vulnerabilities
Date: January 13, 2010
Bugs: #288291
ID: 201001-06

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Synopsis
========

A buffer overflow and a format string vulnerability in aria2 allow
remote attackers to execute arbitrary code.

Background
==========

aria2 is a download utility with resuming and segmented downloading
with HTTP/HTTPS/FTP/BitTorrent support.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/aria2 < 1.6.3 >= 1.6.3

Description
===========

Tatsuhiro Tsujikawa reported a buffer overflow in
DHTRoutingTableDeserializer.cc (CVE-2009-3575) and a format string
vulnerability in the AbstractCommand::onAbort() function in
src/AbstractCommand.cc (CVE-2009-3617).

Impact
======

A remote, unauthenticated attacker could possibly execute arbitrary
code with the privileges of the user running the application or cause a
Denial of Service (application crash).

Workaround
==========

Do not use DHT (CVE-2009-3575) and disable logging (CVE-2009-3617).

Resolution
==========

All aria2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/aria2-1.6.3"

References
==========

[ 1 ] CVE-2009-3575
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3575
[ 2 ] CVE-2009-3617
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3617

Availability
============

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

http://security.gentoo.org/glsa/glsa-201001-06.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 2010 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