A Tor security update is available for Gentoo Linux to address multiple vulnerabilities that could allow remote attackers to cause a Denial of Service condition.
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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
