CVE-2024-32974 Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete()

2024-06-0421:00:07

CWE-416

GitHub_M

github.com

envoy

cloud-native

proxy

crash

quiche

use-after-free

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete() with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading() being called on the stream. As after StopReading(), the HCM’s ActiveStream might have already be destroyed and any up calls from QUICHE could potentially cause use after free.

CNA Affected

[
  {
    "vendor": "envoyproxy",
    "product": "envoy",
    "versions": [
      {
        "status": "affected",
        "version": ">= 1.30.0, <= 11.30.1"
      },
      {
        "status": "affected",
        "version": ">= 1.29.0, <= 1.29.4"
      },
      {
        "status": "affected",
        "version": ">= 1.28.0, <= 1.28.3"
      },
      {
        "status": "affected",
        "version": "<= 1.27.5"
      }
    ]
  }
]