CVE-2022-39254
CVSS V2 None
CVSS V3 Medium 6.5
Description
matrix-nio is a Python Matrix client library, designed according to sans I/O principles. Prior to version 0.20, when a users requests a room key from their devices, the software correctly remember the request. Once they receive a forwarded room key, they accept it without checking who the room key came from. This allows homeservers to try to insert room keys of questionable validity, potentially mounting an impersonation attack. Version 0.20 fixes the issue.
Overview
- CVE ID
- CVE-2022-39254
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-09-29T15:15:10
- Last Modified Date
- 2022-10-03T19:42:49
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:matrix-nio_project:matrix-nio:*:*:*:*:*:*:*:* | 1 | OR | 0.20 |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-39254 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-39254 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-09-29 16:00:12 | Added to TrackCVE | |||
| 2022-12-07 05:14:31 | 2022-09-29T15:15Z | 2022-09-29T15:15:10 | CVE Published Date | updated |
| 2022-12-07 05:14:31 | 2022-10-03T19:42:49 | CVE Modified Date | updated | |
| 2022-12-07 05:14:31 | Analyzed | Vulnerability Status | updated |