RHEL 7 : gnutls (RHSA-2017:2292)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update for gnutls is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The gnutls packages provide the GNU Transport Layer Security (GnuTLS)
library, which implements cryptographic algorithms and protocols such
as SSL, TLS, and DTLS.

The following packages have been upgraded to a later upstream version:
gnutls (3.3.26). (BZ#1378373)

Security Fix(es) :

* A double-free flaw was found in the way GnuTLS parsed certain X.509
certificates with Proxy Certificate Information extension. An attacker
could create a specially crafted certificate which, when processed by
an application compiled against GnuTLS, could cause that application
to crash. (CVE-2017-5334)

* Multiple flaws were found in the way gnutls processed OpenPGP
certificates. An attacker could create specially crafted OpenPGP
certificates which, when parsed by gnutls, would cause it to crash.
(CVE-2017-5335, CVE-2017-5336, CVE-2017-5337, CVE-2017-7869)

* A NULL pointer dereference flaw was found in the way GnuTLS
processed ClientHello messages with status_request extension. A remote
attacker could use this flaw to cause an application compiled with
GnuTLS to crash. (CVE-2017-7507)

* A flaw was found in the way GnuTLS validated certificates using OCSP
responses. This could falsely report a certificate as valid under
certain circumstances. (CVE-2016-7444)

The CVE-2017-7507 issue was discovered by Hubert Kario (Red Hat QE
BaseOS Security team).

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.4 Release Notes linked from the References section.

See also :

http://www.nessus.org/u?70a6f8bb
http://rhn.redhat.com/errata/RHSA-2017-2292.html
https://www.redhat.com/security/data/cve/CVE-2016-7444.html
https://www.redhat.com/security/data/cve/CVE-2017-5334.html
https://www.redhat.com/security/data/cve/CVE-2017-5335.html
https://www.redhat.com/security/data/cve/CVE-2017-5336.html
https://www.redhat.com/security/data/cve/CVE-2017-5337.html
https://www.redhat.com/security/data/cve/CVE-2017-7507.html
https://www.redhat.com/security/data/cve/CVE-2017-7869.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 102116 ()

Bugtraq ID:

CVE ID: CVE-2016-7444
CVE-2017-5334
CVE-2017-5335
CVE-2017-5336
CVE-2017-5337
CVE-2017-7507
CVE-2017-7869

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now