Vulnerability Details : CVE-2020-12395
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-12395
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-12395
1.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-12395
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-12395
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12395
-
https://www.mozilla.org/security/advisories/mfsa2020-16/
Security Vulnerabilities fixed in Firefox 76 — MozillaVendor Advisory
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https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508
Bug ListBroken Link;Issue Tracking
-
https://www.mozilla.org/security/advisories/mfsa2020-17/
Security Vulnerabilities fixed in Firefox ESR 68.8 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2020-18/
Security Vulnerabilities fixed in Thunderbird 68.8.0 — MozillaVendor Advisory
-
https://usn.ubuntu.com/4373-1/
USN-4373-1: Thunderbird vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://security.gentoo.org/glsa/202005-04
Mozilla Firefox: Multiple vulnerabilities (GLSA 202005-04) — Gentoo securityThird Party Advisory
-
https://security.gentoo.org/glsa/202005-03
Mozilla Thunderbird: Multiple vulnerabilities (GLSA 202005-03) — Gentoo securityThird Party Advisory
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