CVE-2007-2161 Denial of service in n/a

Medium 4.3 Published Updated

Remote attackers can cause a browser hang in Internet Explorer 7 by sending JavaScript with a specific regular expression against a long string.

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-2007-2161?

CVE-2007-2161 is a medium-severity denial of service vulnerability in Microsoft Internet Explorer, published on 22 Apr 2007. 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

Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.

Which versions are affected by CVE-2007-2161?

It affects 1 product.

Products include Microsoft Internet Explorer.

How do I fix CVE-2007-2161?

No fix has been published for CVE-2007-2161 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2007-2161 being exploited?

There is no known exploitation of CVE-2007-2161 in the wild and no public exploit code.

All Microsoft Internet Explorer vulnerabilities

Sources

Also known as GHSA-wr3m-ccvr-j929.

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