Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-23991 | First vendor Publication | 2021-06-24 |
| Vendor | Cve | Last vendor Modification | 2021-07-08 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 6.8 | ||
| Base Score | 6.8 | Environmental Score | 6.8 |
| impact SubScore | 5.2 | Temporal Score | 6.8 |
| Exploitabality Sub Score | 1.6 | ||
| Attack Vector | Network | Attack Complexity | High |
| Privileges Required | None | User Interaction | Required |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:H/Au:N/C:P/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 4 | Attack Range | Network |
| Cvss Impact Score | 4.9 | Attack Complexity | High |
| Cvss Expoit Score | 4.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23991 |
CPE : Common Platform Enumeration
Sources (Detail)
| Source | Url |
|---|---|
| MISC | https://bugzilla.mozilla.org/show_bug.cgi?id=1673240 https://www.mozilla.org/security/advisories/mfsa2021-13/ |
Alert History
| Date | Informations |
|---|---|
| 2021-07-08 21:23:16 |
|
| 2021-06-24 21:23:09 |
|
