MS15-129: Security Update for Silverlight to Address Remote Code Execution (3106614) (Mac OS X)

High Nessus Plugin ID 87251

Synopsis

A multimedia application framework installed on the remote Mac OS X host is affected by multiple vulnerabilities.

Description

The version of Microsoft Silverlight installed on the remote Mac OS X host is affected by the following vulnerabilities :

- Multiple information disclosure vulnerabilities exist due to a failure to properly handle objects in memory.
An attacker can exploit these issues, via crafted Silverlight content, to more reliably predict pointer values and thus degrade the effectiveness of the Address Space Layout Randomization (ASLR) security feature, allowing the system to be further compromised.
(CVE-2015-6114, CVE-2015-6165)

- A remote code execution vulnerability exists due to incorrect handling of certain open and close requests, which result in read and write access violations. A remote attacker can exploit this vulnerability, via a specially crafted Silverlight application, to gain privileges and take complete control of the affected host. (CVE-2015-6166)

Solution

Microsoft has released a set of patches for Silverlight 5.

See Also

http://technet.microsoft.com/en-us/security/bulletin/ms15-129

Plugin Details

Severity: High

ID: 87251

File Name: macosx_ms15-129.nasl

Version: 1.7

Type: local

Agent: macosx

Published: 2015/12/08

Updated: 2018/07/14

Dependencies: 58091

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:silverlight

Required KB Items: Host/local_checks_enabled, Host/MacOSX/Version, MacOSX/Silverlight/Installed

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/12/08

Vulnerability Publication Date: 2015/12/08

Reference Information

CVE: CVE-2015-6114, CVE-2015-6165, CVE-2015-6166

MSFT: MS15-129

MSKB: 3106614