Microsoft Silverlight < 5.1.40416.00 Multiple Vulnerabilities (MS15-044 / MS15-049) (Mac OS X)

high Nessus Plugin ID 83353
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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 host is affected by multiple vulnerabilities :

- An information disclosure vulnerability exists due to improper handling of OpenType fonts by the Windows DirectWrite library. A remote attacker can exploit this vulnerability by convincing a user to open a file or visit a website containing a specially crafted OpenType font, resulting in the disclosure of sensitive information. (MS15-044 / CVE-2015-1670)

- A remote code execution vulnerability exists due to improper handling of TrueType font files by the Windows DirectWrite library. A remote attacker can exploit this vulnerability by convincing a user to open a specially crafted document or visit a website containing a specially crafted TrueType font file, resulting in execution of arbitrary code in the context of the current user. (MS15-044 / CVE-2015-1671)

- A flaw exists in Microsoft Silverlight that allows a remote attacker, via a specially crafted Silverlight application, to execute arbitrary code with the same or higher level of permissions as the currently logged on user. (MS15-049 / CVE-2015-1715)

Solution

Microsoft has released a set of patches for Silverlight 5.

See Also

http://technet.microsoft.com/en-us/security/bulletin/ms15-049

http://technet.microsoft.com/en-us/security/bulletin/ms15-044

Plugin Details

Severity: High

ID: 83353

File Name: macosx_ms15-049.nasl

Version: 1.10

Type: local

Agent: macosx

Published: 5/12/2015

Updated: 7/14/2018

Dependencies: macosx_silverlight_installed.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9.6

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

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

Temporal Vector: E:H/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: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/12/2015

Vulnerability Publication Date: 5/12/2015

Reference Information

CVE: CVE-2015-1670, CVE-2015-1671, CVE-2015-1715

BID: 74485, 74490, 74503

MSFT: MS15-049, MS15-044

MSKB: 3056819