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Sicherheit: Mehrere Probleme in Tor
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Tor
ID: 202107-25
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Sa, 10. Juli 2021, 07:22
Referenzen: https://nvd.nist.gov/vuln/detail/CVE-2021-34548
https://nvd.nist.gov/vuln/detail/CVE-2021-34549
https://nvd.nist.gov/vuln/detail/CVE-2021-28090
https://nvd.nist.gov/vuln/detail/CVE-2021-34550
https://nvd.nist.gov/vuln/detail/CVE-2021-28089
Applikationen: Tor

Originalnachricht


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Gentoo Linux Security Advisory GLSA 202107-25
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https://security.gentoo.org/
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Severity: Normal
Title: Tor: Multiple vulnerabilities
Date: July 10, 2021
Bugs: #776586, #795969
ID: 202107-25

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Synopsis
========

Multiple vulnerabilities have been found in Tor, the worst of which
could result in 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 < 0.4.6.5 >= 0.4.6.5
>= 0.4.5.9
>= 0.4.4.9

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

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

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Tor 0.4.6.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.6.5"

All Tor 0.4.5.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.5.9"

All Tor 0.4.4.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-vpn/tor-0.4.4.9"

References
==========

[ 1 ] CVE-2021-28089
https://nvd.nist.gov/vuln/detail/CVE-2021-28089
[ 2 ] CVE-2021-28090
https://nvd.nist.gov/vuln/detail/CVE-2021-28090
[ 3 ] CVE-2021-34548
https://nvd.nist.gov/vuln/detail/CVE-2021-34548
[ 4 ] CVE-2021-34549
https://nvd.nist.gov/vuln/detail/CVE-2021-34549
[ 5 ] CVE-2021-34550
https://nvd.nist.gov/vuln/detail/CVE-2021-34550

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

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

https://security.gentoo.org/glsa/202107-25

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 2021 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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