GLSA 202006-01: GnuTLS: Information disclosure

http://security.gentoo.org/

Severity:	normal
Title:	GnuTLS: Information disclosure
Date:	06/09/2020
Bugs:	#727108
ID:	202006-01

Synopsis

An information disclosure vulnerability in GnuTLS allow remote attackers to obtain sensitive information.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-libs/gnutls	< 3.6.14	>= 3.6.14	All supported architectures

Description

A flaw was reported in the TLS session ticket key construction in GnuTLS.

Impact

A remote attacker could recover previous conversations in TLS 1.2 and obtain sensitive information or conduct a man-in-the-middle attack to bypass authentication in TLS 1.3.

Workaround

There is no known workaround at this time.

Resolution

All GnuTLS user should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.14"

References

CVE-2020-13777

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202006-01.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.