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Gentoo Linux Security Advisory 202009-01

Gentoo Linux Security Advisory 202009-01
Posted Sep 6, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202009-1 - A flaw was found in GnuTLS, possibly allowing a Denial of Service condition. Versions less than 3.6.15 are affected.

tags | advisory, denial of service
systems | linux, gentoo
advisories | CVE-2020-24659
MD5 | bb2922f1bbc0d9ea640f78d76b993003

Gentoo Linux Security Advisory 202009-01

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 202009-01
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https://security.gentoo.org/
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Severity: Low
Title: GnuTLS: Denial of service
Date: September 06, 2020
Bugs: #740390
ID: 202009-01

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Synopsis
========

A flaw was found in GnuTLS, possibly allowing a Denial of Service
condition.

Background
==========

GnuTLS is an Open Source implementation of the TLS and SSL protocols.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-libs/gnutls < 3.6.15 >= 3.6.15

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

It was found that GnuTLS didn't handle "no_renegotiation" alert
properly.

Impact
======

A remote attacker could entice a user to connect to a malicious TLS
endpoint using an application linked against GnuTLS, possibly resulting
in a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GnuTLS users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.15"

References
==========

[ 1 ] CVE-2020-24659
https://nvd.nist.gov/vuln/detail/CVE-2020-24659

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

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

https://security.gentoo.org/glsa/202009-01

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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