Vulnerability Description
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 74.0 |
| Mozilla | Firefox Esr | < 68.6.0 |
| Mozilla | Thunderbird | < 68.6.0 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C16Issue TrackingVendor Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C16Issue TrackingVendor Advisory
- https://usn.ubuntu.com/4328-1/Third Party Advisory
- https://usn.ubuntu.com/4335-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-08/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-09/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-10/Vendor Advisory
FAQ
What is CVE-2020-6814?
CVE-2020-6814 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these cou...
How severe is CVE-2020-6814?
CVE-2020-6814 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-6814?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Canonical Ubuntu Linux.