CVE-2009-4630 Information disclosure in n/a

Medium 5.0 Published Updated

Remote attackers can determine a user's network location by logging DNS requests triggered by prefetching links in local HTML documents.

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-2009-4630?

CVE-2009-4630 is a medium-severity vulnerability in Mozilla Firefox, published on 29 Jan 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

Mozilla Necko, as used in Firefox, SeaMonkey, and other applications, performs DNS prefetching of domain names contained in links within local HTML documents, which makes it easier for remote attackers to determine the network location of the application's user by logging DNS requests. NOTE: the vendor disputes the significance of this issue, stating "I don't think we necessarily need to worry about that case."

Weakness: CWE-200

Which versions are affected by CVE-2009-4630?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2009-4630?

No fix has been published for CVE-2009-4630 yet. Limit exposure of the affected software until one is available.

Is CVE-2009-4630 being exploited?

There is no known exploitation of CVE-2009-4630 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-v68x-c6cp-w37j.

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