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

This script is Copyright (C) 2015-2017 Tenable Network Security, Inc.


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)

See also :

http://technet.microsoft.com/en-us/security/bulletin/ms15-049
http://technet.microsoft.com/en-us/security/bulletin/ms15-044

Solution :

Microsoft has released a set of patches for Silverlight 5.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.3
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true

Family: MacOS X Local Security Checks

Nessus Plugin ID: 83353 ()

Bugtraq ID: 74485
74490
74503

CVE ID: CVE-2015-1670
CVE-2015-1671
CVE-2015-1715

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