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GitHub_MCVE-2022-21655

HistoryFeb 22, 2022 - 11:15 p.m.

CVE-2022-21655

2022-02-2223:15:11

CWE-670

GitHub_M

web.nvd.nist.gov

105

envoy

cve-2022-21655

denial of service

nvd

security vulnerability

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

7.5

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

39.2%

JSON

Envoy is an open source edge and service proxy, designed for cloud-native applications. The envoy common router will segfault if an internal redirect selects a route configured with direct response or redirect actions. This will result in a denial of service. As a workaround turn off internal redirects if direct response entries are configured on the same listener.

Affected configurations

Nvd

Vulners

Node

envoyproxyenvoyRange<1.18.6

envoyproxyenvoyRange1.19.0–1.19.3

envoyproxyenvoyRange1.20.0–1.20.2

envoyproxyenvoyRange1.21.0–1.21.1

VendorProductVersionCPE
envoyproxyenvoy*cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
envoyproxy	envoy	*	cpe:2.3:a:envoyproxy:envoy::::::::

CNA Affected

[
  {
    "product": "envoy",
    "vendor": "envoyproxy",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.18.6"
      },
      {
        "status": "affected",
        "version": ">= 1.19.0, < 1.19.3"
      },
      {
        "status": "affected",
        "version": ">= 1.20.0, < 1.20.2"
      },
      {
        "status": "affected",
        "version": ">= 1.21.0, < 1.21.1"
      }
    ]
  }
]