Vulnerability Details : CVE-2022-39271
Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds.
Vulnerability category: Denial of service
Products affected by CVE-2022-39271
- cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:traefik:traefik:2.9.0:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39271
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39271
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-39271
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: security-advisories@github.com (Secondary)
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-39271
-
https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr
HTTP/2 connections management could cause a deny of service · Advisory · traefik/traefik · GitHubPatch;Third Party Advisory
-
https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5
Release v2.9.0-rc5 · traefik/traefik · GitHubRelease Notes;Third Party Advisory
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https://github.com/traefik/traefik/releases/tag/v2.8.8
Release v2.8.8 · traefik/traefik · GitHubRelease Notes;Third Party Advisory
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