CVE-2022-39271

Traefik HTTP/2 connections management could cause a denial of service

Description

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.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: traefik traefik
Published at:
Updated at:

References

Link Tags
https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr third party advisory patch
https://github.com/traefik/traefik/releases/tag/v2.8.8 third party advisory release notes
https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-39271?
CVE-2022-39271 has been scored as a high severity vulnerability.
How to fix CVE-2022-39271?
To fix CVE-2022-39271, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39271 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39271 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39271?
CVE-2022-39271 affects traefik traefik.
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