CVE-2020-12399

Medium

Description

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

SeverityMedium
CVSS4.4
Exploit probability—
ProductMozilla Firefox
PublishedJul 9, 2020
First seenJul 9, 2020

How to fix

Update
  • mozilla firefox77.0 or later
  • mozilla firefox_esr68.9.0 or later
  • mozilla thunderbird68.9.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 77.077.0
mozilla firefox_esrv < 68.9.068.9.0
mozilla thunderbirdv < 68.9.068.9.0
debian debian_linux9.0—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.