CVE-2010-3971 Use after free in n/a
Remote attackers can execute arbitrary code or crash the browser via a crafted CSS self-referential import rule in Internet Explorer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2010-3971?
CVE-2010-3971 is a critical use after free vulnerability in Microsoft Internet Explorer, published on 22 Dec 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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."
Weakness: CWE-399
Which versions are affected by CVE-2010-3971?
It affects 1 product.
Products include Microsoft Internet Explorer.
How do I fix CVE-2010-3971?
No fix has been published for CVE-2010-3971 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2010-3971 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3971 exists.
Public exploit code: 1 Metasploit module, 3 Exploit-DB entries and 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Internet Explorer
- CVE-2014-1776 Microsoft Internet Explorer Memory Corruption
- CVE-2021-27085 Microsoft Internet Explorer Remote Code Execution
- CVE-2017-0222 Microsoft Internet Explorer Remote Code Execution
- CVE-2017-0210 Microsoft Internet Explorer Privilege Escalation
- CVE-2017-0149 Microsoft Internet Explorer Memory Corruption
Sources
Also known as GHSA-r6fx-qpgx-pg2w.