Vulnerability Details : CVE-2020-6795
When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-6795
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-6795
0.73%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-6795
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2020-6795
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-6795
-
https://www.mozilla.org/security/advisories/mfsa2020-07/
Security Vulnerabilities fixed in Thunderbird 68.5 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1611105
Access DeniedPermissions Required
-
https://usn.ubuntu.com/4335-1/
USN-4335-1: Thunderbird vulnerabilities | Ubuntu security notices
-
https://usn.ubuntu.com/4328-1/
USN-4328-1: Thunderbird vulnerabilities | Ubuntu security notices
-
https://security.gentoo.org/glsa/202003-10
Mozilla Thunderbird: Multiple vulnerabilities (GLSA 202003-10) — Gentoo security
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