CVE-2010-3971

Critical

Description

Use-after-free vulnerability in the CSharedStyleSheet::Notify function in the Cascading Style Sheets (CSS) parser in mshtml.dll, as used in Microsoft Internet Explorer 6 through 8 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a self-referential @import rule in a stylesheet, aka "CSS Memory Corruption Vulnerability."

SeverityCritical

CVSS9.3

Exploit probability—

Product

Microsoft Internet Explorer

PublishedDec 22, 2010

First seenDec 22, 2010

How to fix

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-003

Affected products

Product	Affected versions	Fixed in
microsoft internet_explorer	7, 8	—

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