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
Family: MacOS X Local Security Checks
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
MSFT: MS15-049, MS15-044
MSKB: 3056819