CVE-2021-39204
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched.
Overview
- CVE ID
- CVE-2021-39204
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-09T22:15:09
- Last Modified Date
- 2021-09-27T18:30:56
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | 1 | OR | 1.16.4 | |
| cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | 1 | OR | 1.17.0 | 1.17.4 |
| cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | 1 | OR | 1.18.0 | 1.18.4 |
| cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:* | 1 | OR | 0.14.8 | |
| cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:* | 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/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r | Third Party Advisory |
| https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ | Not Applicable |
| https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39204 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39204 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:53:19 | Added to TrackCVE | |||
| 2022-12-05 10:18:47 | 2021-09-09T22:15Z | 2021-09-09T22:15:09 | CVE Published Date | updated |
| 2022-12-05 10:18:47 | 2021-09-27T18:30:56 | CVE Modified Date | updated | |
| 2022-12-05 10:18:47 | Analyzed | Vulnerability Status | updated |