Amazon Linux AMI : gnutls (ALAS-2015-575)

high Nessus Plugin ID 85230

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

It was found that GnuTLS did not check activation and expiration dates of CA certificates. This could cause an application using GnuTLS to incorrectly accept a certificate as valid when its issuing CA is already expired. (CVE-2014-8155)

It was found that GnuTLS did not verify whether a hashing algorithm listed in a signature matched the hashing algorithm listed in the certificate. An attacker could create a certificate that used a different hashing algorithm than it claimed, possibly causing GnuTLS to use an insecure, disallowed hashing algorithm during certificate verification. (CVE-2015-0282)

It was discovered that GnuTLS did not check if all sections of X.509 certificates indicate the same signature algorithm. This flaw, in combination with a different flaw, could possibly lead to a bypass of the certificate signature check. (CVE-2015-0294)

Solution

Run 'yum update gnutls' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2015-575.html

Plugin Details

Severity: High

ID: 85230

File Name: ala_ALAS-2015-575.nasl

Version: 2.3

Type: local

Agent: unix

Published: 8/5/2015

Updated: 2/3/2020

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:gnutls, p-cpe:/a:amazon:linux:gnutls-debuginfo, p-cpe:/a:amazon:linux:gnutls-devel, p-cpe:/a:amazon:linux:gnutls-guile, p-cpe:/a:amazon:linux:gnutls-utils, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 8/4/2015

Vulnerability Publication Date: 3/24/2015

Reference Information

CVE: CVE-2014-8155, CVE-2015-0282, CVE-2015-0294

ALAS: 2015-575

RHSA: 2015:1457