SB2010110302 - Use-after-free when parsing CSS in Internet Explorer

Description

This security bulletin contains information about 1 security vulnerability.

1) Use-after-free (CVE-ID: CVE-2010-3962)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error when processing CSS token sequences and the clip attribute. A remote attacker can create a specially crafted HTML page, trick the victim into visiting it, cause memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Remediation

Install update from vendor's website.

References

• https://technet.microsoft.com/library/security/2458511
• https://technet.microsoft.com/library/security/ms10-090
• https://www.symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacks
• http://security.bkav.com/home/-/blogs/new-ie-zero-day-vulnerability-cve-2010-3962-/normal