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Gentoo Linux Security Advisory                           GLSA 202003-50
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                                           https://security.gentoo.org/
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 Severity: Low
    Title: Tor: Multiple vulnerabilities
     Date: March 25, 2020
     Bugs: #713238
       ID: 202003-50

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Synopsis
========

Multiple vulnerabilities were found in Tor, the worst of which could
allow remote attackers to cause a Denial of Service condition.

Background
==========

Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-vpn/tor                 < 0.4.2.7                *>= 0.4.1.9
                                                          *>= 0.4.2.7

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

Multiple vulnerabilities have been discovered in Tor, and tor. Please
review the CVE identifiers referenced below for details.

Impact
======

A remote attacker could possibly cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Tor 0.4.1.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.1.9"

All Tor 0.4.2.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.2.7"

References
==========

[ 1 ] CVE-2020-10592
      https://nvd.nist.gov/vuln/detail/CVE-2020-10592
[ 2 ] CVE-2020-10593
      https://nvd.nist.gov/vuln/detail/CVE-2020-10593

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

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

 https://security.gentoo.org/glsa/202003-50

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 2020 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.

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