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

critical Nessus Plugin ID 92221
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 6.7

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: 12634

Risk Information

Risk Factor: Critical

VPR Score: 6.7

CVSS v2.0

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 v3.0

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