CVE-2022-39271
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Traefik
PublishedOct 11, 2022
First seenOct 11, 2022
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- traefik traefik2.8.8 or later
- github.com/traefik/traefik/v22.8.8, 2.9.0-rc5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| traefik traefik | v < 2.8.8, 2.9.0 | 2.8.8 |
| github.com/traefik/traefik/v2Go | v < 2.8.8, 2.9.0-rc1 ≤ v < 2.9.0-rc5 | 2.8.8, 2.9.0-rc5 |
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