Amazon Linux AMI : libxml2 (ALAS-2016-719)

critical Nessus Plugin ID 92221
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

A heap-based buffer overflow flaw was found in the way libxml2 parsed certain crafted XML input. A remote attacker could provide a specially crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or execute arbitrary code with the permissions of the user running the application.
(CVE-2016-1834 , CVE-2016-1840)

Multiple denial of service flaws were found in libxml2. A remote attacker could provide a specially crafted XML file that, when processed by an application using libxml2, could cause that application to crash. (CVE-2016-1762 , CVE-2016-1833 , CVE-2016-1835 , CVE-2016-1836 , CVE-2016-1837 , CVE-2016-1838 , CVE-2016-1839 , CVE-2016-3627 , CVE-2016-3705 , CVE-2016-4447 , CVE-2016-4448 , CVE-2016-4449)

Solution

Run 'yum update libxml2' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2016-719.html

Plugin Details

Severity: Critical

ID: 92221

File Name: ala_ALAS-2016-719.nasl

Version: 2.4

Type: local

Agent: unix

Published: 7/15/2016

Updated: 4/11/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:amazon:linux:*:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2-static:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2-python26:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:libxml2-python27:*:*:*:*:*:*:*

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2016

Reference Information

CVE: CVE-2016-3627, CVE-2016-1762, CVE-2016-1833, CVE-2016-1834, CVE-2016-1835, CVE-2016-1837, CVE-2016-1838, CVE-2016-1839, CVE-2016-1840, CVE-2016-3705, CVE-2016-4447, CVE-2016-4448, CVE-2016-4449, CVE-2016-1836

ALAS: 2016-719