Vulnerability Description
Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 76.0 |
| Mozilla | Firefox Esr | < 68.8.0 |
| Mozilla | Thunderbird | < 68.8.0 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C16Broken LinkIssue Tracking
- https://security.gentoo.org/glsa/202005-03Third Party Advisory
- https://security.gentoo.org/glsa/202005-04Third Party Advisory
- https://usn.ubuntu.com/4373-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-18/Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C16Broken LinkIssue Tracking
- https://security.gentoo.org/glsa/202005-03Third Party Advisory
- https://security.gentoo.org/glsa/202005-04Third Party Advisory
- https://usn.ubuntu.com/4373-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-17/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-18/Vendor Advisory
FAQ
What is CVE-2020-12395?
CVE-2020-12395 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. Some of these bugs showed evidence of memory corruption and we presume that with enough...
How severe is CVE-2020-12395?
CVE-2020-12395 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-2020-12395?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Canonical Ubuntu Linux.