CVE-2021-3909
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.
Overview
- CVE ID
- CVE-2021-3909
- Assigner
- cna@cloudflare.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-11-11T22:15:07
- Last Modified Date
- 2022-04-04T14:02:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:* | 1 | OR | 1.3.0 | |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244 | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-5033 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5041 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3909 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3909 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:30:07 | Added to TrackCVE | |||
| 2022-12-05 14:21:14 | 2021-11-11T22:15Z | 2021-11-11T22:15:07 | CVE Published Date | updated |
| 2022-12-05 14:21:14 | 2022-04-04T14:02:00 | CVE Modified Date | updated | |
| 2022-12-05 14:21:14 | Analyzed | Vulnerability Status | updated |