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

high Nessus Plugin ID 87251

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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.

Plugin Details

Severity: High

ID: 87251

File Name: macosx_ms15-129.nasl

Version: 1.7

Type: local

Agent: macosx

Family: MacOS X Local Security Checks

Published: 12/8/2015

Updated: 7/14/2018

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

Vulnerability Information

CPE: cpe:/a:microsoft:silverlight

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/8/2015

Vulnerability Publication Date: 12/8/2015

Reference Information

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

MSFT: MS15-129

MSKB: 3106614

Detections

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