SB2009101303 - Remote code execution and information disclosure in Microsoft Active Template Library
Published: October 13, 2009 Updated: December 21, 2016
Security Bulletin ID
SB2009101303
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Buffer over-read (CVE-ID: CVE-2009-2495)
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.The weakness exists due to buffer over-read in Microsoft Active Template Library (ATL). A remote attacker can create a specially crafted HTML document with an ATL component or control, trigger memory corruption and gain access to potentially sensitive data.
Successful exploitation of the vulnerability results in information disclosure on the vulnerable system.
2) Improper initialization (CVE-ID: CVE-2009-0901)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to improper initialization in the Microsoft Active Template Library (ATL) when handling objects from data streams related to unsafe usage of VariantClear() function. A remote attacker can create a specially crafted Web site that that passes a corrupt stream to a component or control using the IE browser, trick the victim into viewing it and execute arbitrary code on the target system with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Remediation
Install update from vendor's website.