CVE-2020-6793 Information disclosure in Thunderbird

Medium 6.5 Published Updated

An attacker can read random memory data by sending an email with an ill-formed envelope to a Thunderbird user.

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
Available

What is CVE-2020-6793?

CVE-2020-6793 is a medium-severity vulnerability in Mozilla Thunderbird, published on 2 Mar 2020. 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

When processing an email message with an ill-formed envelope, Thunderbird could read data from a random memory location. This vulnerability affects Thunderbird < 68.5.

Weakness: CWE-908

Which versions are affected by CVE-2020-6793?

It affects 1 product.

Products include Mozilla Thunderbird.

How do I fix CVE-2020-6793?

Upgrade to a fixed version.

Is CVE-2020-6793 being exploited?

There is no known exploitation of CVE-2020-6793 in the wild and no public exploit code.

All Mozilla Thunderbird vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-6793, GHSA-2g5q-49cr-4f7j, UBUNTU-CVE-2020-6793.

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