Amazon Linux AMI : libtasn1 (ALAS-2014-359)

medium Nessus Plugin ID 78302

Synopsis

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

Description

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data.
Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code.
(CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

Solution

Run 'yum update libtasn1' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2014-359.html

Plugin Details

Severity: Medium

ID: 78302

File Name: ala_ALAS-2014-359.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/12/2014

Updated: 4/18/2018

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libtasn1, p-cpe:/a:amazon:linux:libtasn1-debuginfo, p-cpe:/a:amazon:linux:libtasn1-devel, p-cpe:/a:amazon:linux:libtasn1-tools, cpe:/o:amazon:linux

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

Patch Publication Date: 6/15/2014

Reference Information

CVE: CVE-2014-3467, CVE-2014-3468, CVE-2014-3469

ALAS: 2014-359

RHSA: 2014:0596