CVE-2021-39162

CVSS V2 Medium 5 CVSS V3 High 8.6
Description
Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.
Overview
  • CVE ID
  • CVE-2021-39162
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-09T22:15:09
  • Last Modified Date
  • 2021-09-27T14:25:03
Weakness Enumerations
CWE URL
CWE-754 http://cwe.mitre.org/data/definitions/754.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* 1 OR 1.18.4
cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:* 1 OR
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:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8 Third Party Advisory
https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ Not Applicable Third Party Advisory
https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-39162
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39162
History
Created Old Value New Value Data Type Notes
2022-05-10 06:53:22 Added to TrackCVE
2022-12-05 10:18:28 2021-09-09T22:15Z 2021-09-09T22:15:09 CVE Published Date updated
2022-12-05 10:18:28 2021-09-27T14:25:03 CVE Modified Date updated
2022-12-05 10:18:28 Analyzed Vulnerability Status updated