CVE-2022-39271

2022-10-1114:15:09

CWE-400

CWE-755

[email protected]

web.nvd.nist.gov

traefik

http

reverse proxy

load balancer

microservices

cve-2022-39271

vulnerability

patch

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.4%

JSON

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.

Affected configurations

Vulners

NVD

Node

traefiktraefikRange<2.8.8

traefiktraefikRange2.9.0-rc1–2.9.0-rc5

VendorProductVersionCPE
traefiktraefik*cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
traefiktraefik*cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
traefik	traefik	*	cpe:2.3:a:traefik:traefik::::::::
traefik	traefik	*	cpe:2.3:a:traefik:traefik::::::::

CNA Affected

[
  {
    "vendor": "traefik",
    "product": "traefik",
    "versions": [
      {
        "version": " < 2.8.8",
        "status": "affected"
      },
      {
        "version": ">= 2.9.0-rc1, < 2.9.0-rc5",
        "status": "affected"
      }
    ]
  }
]