CVE-2017-7790 Information disclosure in Firefox

High 7.5 Published Updated

An attacker can read private local system data via stack memory leakage in the Firefox crash reporter on Windows systems.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-7790?

CVE-2017-7790 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On Windows systems, if non-null-terminated strings are copied into the crash reporter for some specific registry keys, stack memory data can be copied until a null is found. This can potentially contain private data from the local system. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Firefox < 55.

Which versions are affected by CVE-2017-7790?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2017-7790?

Upgrade to a fixed version.

Is CVE-2017-7790 being exploited?

There is no known exploitation of CVE-2017-7790 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-rh2c-qhcf-wg9r.

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