* [gentoo-announce] [ GLSA 201101-02 ] Tor: Remote heap-based buffer overflow
@ 2011-01-15 2:20 99% Tim Sammut
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From: Tim Sammut @ 2011-01-15 2:20 UTC (permalink / raw
To: gentoo-announce; +Cc: bugtraq, full-disclosure, security-alerts
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Gentoo Linux Security Advisory GLSA 201101-02
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http://security.gentoo.org/
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Severity: High
Title: Tor: Remote heap-based buffer overflow
Date: January 15, 2011
Bugs: #349312
ID: 201101-02
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Synopsis
========
Tor is vulnerable to a heap-based buffer overflow that may allow
arbitrary code execution.
Background
==========
Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/tor < 0.2.1.28 >= 0.2.1.28
Description
===========
Tor contains a heap-based buffer overflow in the processing of user or
attacker supplied data. No additional information is available.
Impact
======
Successful exploitation of this vulnerability may allow an
unauthenticated remote attacker to execute arbitrary code with the
permissions of the Tor user, or to cause a Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Tor users should upgrade to the latest stable version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/tor-0.2.1.28"
References
==========
[ 1 ] CVE-2010-1676
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1676
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201101-02.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 2011 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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