CVE-2020-6792 Information disclosure in Thunderbird

What is CVE-2020-6792?

CVE-2020-6792 is a medium-severity vulnerability in Canonical Ubuntu Linux, 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 deriving an identifier for an email message, uninitialized memory was used in addition to the message contents. This vulnerability affects Thunderbird < 68.5.

Weakness: CWE-909, CWE-908

Which versions are affected by CVE-2020-6792?

It affects 2 products.

Products include Canonical Ubuntu Linux, Mozilla Thunderbird.

How do I fix CVE-2020-6792?

Upgrade to a fixed version.

Is CVE-2020-6792 being exploited?

There is no known exploitation of CVE-2020-6792 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-6792, GHSA-c3mf-x864-vg86, UBUNTU-CVE-2020-6792.