CVE-2020-12413 Information disclosure in Firefox

What is CVE-2020-12413?

CVE-2020-12413 is a medium-severity vulnerability in Mozilla Firefox, published on 16 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification. To mitigate this vulnerability, Firefox disabled support for DHE ciphersuites.

Weakness: CWE-203

Which versions are affected by CVE-2020-12413?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Firefox Esr.

How do I fix CVE-2020-12413?

Change a configuration setting.

Is CVE-2020-12413 being exploited?

There is no known exploitation of CVE-2020-12413 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2020-12413, GHSA-4mgq-9qgw-ghcx.