CVE-2024-23322 Envoy crashes when idle and request per try timeout occur within the backoff interval

2024-02-0922:51:53

CWE-416

GitHub_M

www.cve.org

envoy

crash

idle timeout

request timeout

backoff interval

vulnerability

upgrade

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 will crash when certain timeouts happen within the same interval. The crash occurs when the following are true: 1. hedge_on_per_try_timeout is enabled, 2. per_try_idle_timeout is enabled (it can only be done in configuration), 3. per-try-timeout is enabled, either through headers or configuration and its value is equal, or within the backoff interval of the per_try_idle_timeout. 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"
      }
    ]
  }
]