GLSA 202009-01: GnuTLS: Denial of service

Severity:low
Title:GnuTLS: Denial of service
Date:09/06/2020
Bugs: #740390
ID:202009-01

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 Architecture(s)
net-libs/gnutls < 3.6.15 >= 3.6.15 All supported architectures

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

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202009-01.xml

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 2010 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.

Thank you!