Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : gnutls26, gnutls28 vulnerabilities (USN-3318-1)

Ubuntu Security Notice (C) 2017 Canonical, Inc. / NASL script (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Hubert Kario discovered that GnuTLS incorrectly handled decoding a
status response TLS extension. A remote attacker could possibly use
this issue to cause GnuTLS to crash, resulting in a denial of service.
This issue only applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu
17.04. (CVE-2017-7507)

It was discovered that GnuTLS incorrectly handled decoding certain
OpenPGP certificates. A remote attacker could use this issue to cause
GnuTLS to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2017-7869).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected libgnutls26 and / or libgnutls30 packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 100781 ()

Bugtraq ID:

CVE ID: CVE-2017-7507
CVE-2017-7869

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