CVE-2024-23325 Envoy crashes when using an address type that isn’t supported by the OS

2024-02-0922:47:13

CWE-755

CWE-248

GitHub_M

www.cve.org

envoy

proxy protocol

ipv6 vulnerability

upgrade advice

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

7.8

Confidence

High

EPSS

0.001

Percentile

17.0%

JSON

Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CNA Affected

[
  {
    "vendor": "envoyproxy",
    "product": "envoy",
    "versions": [
      {
        "version": ">= 1.29.0, < 1.29.1",
        "status": "affected"
      },
      {
        "version": ">= 1.28.0, < 1.28.1",
        "status": "affected"
      },
      {
        "version": ">= 1.27.0, < 1.27.3",
        "status": "affected"
      },
      {
        "version": "< 1.26.7",
        "status": "affected"
      }
    ]
  }
]