SB2016011203 - Remote code execution in Microsoft Silverlight
Published: January 12, 2016 Updated: February 27, 2017
Security Bulletin ID
SB2016011203
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2016-0034)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to an error when parsing strings with a malicious decoder that can return negative offsets. A remote attacker can create a specially crafted content, trick the victim into opening it, replace unsafe object headers with contents provided by an attacker and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Remediation
Install update from vendor's website.