GnuTLS: DTLS protocol regression — GLSA 202004-06

A regression in GnuTLS breaks the security guarantees of the DTLS protocol.

Affected packages

net-libs/gnutls on all architectures
Affected versions < 3.6.13
Unaffected versions >= 3.6.13

Background

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

Description

It was discovered that DTLS client did not contribute any randomness to the DTLS negotiation.

Impact

Please review the referenced advisory for details.

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-3.6.13"
 

References

Release date
April 02, 2020

Latest revision
April 02, 2020: 1

Severity
normal

Exploitable
local, remote

Bugzilla entries