Mozilla Updates
2121Warning Date
Severity Level
Warning Number
Target Sector
3 November, 2021
● High
2021-3789
All
Description:
Mozilla has released security updates to address multiple vulnerabilities in the following products:
- Firefox
- Firefox ESR
Threats:
- Crash the web browser
- Memory corruption
- Record the user's sensitive data
- An attacker could exploit these vulnerabilities by executing arbitrary code
Best practice and Recommendations:
The CERT team encourages users to review Mozilla security advisory and apply the necessary updates:
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-48/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-49/
*Firefox supports automatic updating to the latest available version.
Update instructions (Firefox):