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Test ID:1.3.6.1.4.1.25623.1.0.844308
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-4233-2)
Summary:The remote host is missing an update for the 'gnutls28' package(s) announced via the USN-4233-2 advisory.
Description:Summary:
The remote host is missing an update for the 'gnutls28' package(s) announced via the USN-4233-2 advisory.

Vulnerability Insight:
USN-4233-1 disabled SHA1 being used for digital signature operations in
GnuTLS. In certain network environments, certificates using SHA1 may still
be in use. This update adds the %VERIFY_ALLOW_BROKEN and
%VERIFY_ALLOW_SIGN_WITH_SHA1 priority strings that can be used to
temporarily re-enable SHA1 until certificates can be replaced with a
stronger algorithm.

Original advisory details:

As a security improvement, this update marks SHA1 as being untrusted for
digital signature operations.

Affected Software/OS:
'gnutls28' package(s) on Ubuntu 16.04, Ubuntu 18.04.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

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