CVE-2021-23992
CVSS V2 Medium 4.3
CVSS V3 Medium 4.3
Description
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.
Overview
- CVE ID
- CVE-2021-23992
- Assigner
- security@mozilla.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-24T14:15:09
- Last Modified Date
- 2021-07-08T15:47:36
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | 1 | OR | 78.9.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1666236 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-13/ | Release Notes Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-23992 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23992 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:08:28 | Added to TrackCVE | |||
| 2022-12-05 04:54:50 | 2021-06-24T14:15Z | 2021-06-24T14:15:09 | CVE Published Date | updated |
| 2022-12-05 04:54:50 | 2021-07-08T15:47:36 | CVE Modified Date | updated | |
| 2022-12-05 04:54:50 | Analyzed | Vulnerability Status | updated |