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Gentoo Linux Security Advisory 202003-50

Gentoo Linux Security Advisory 202003-50
Posted Mar 26, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-50 - Multiple vulnerabilities were found in Tor, the worst of which could allow remote attackers to cause a Denial of Service condition. Versions less than 0.4.2.7 are affected.

tags | advisory, remote, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2020-10592, CVE-2020-10593
SHA-256 | 241c5c76e2d1c5739286959f9935cd5faa7214265175db8ac1d957737034f95d

Gentoo Linux Security Advisory 202003-50

Change Mirror Download
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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
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