Vulnerability · Published Jun 4, 2024 · Assigned by GitHub_M

CVE-2024-34362Envoy affected by a crash (use-after-free) in EnvoyQuicServerStream

Medium 5.9

In plain English

A medium-severity use-after-free in envoy from envoyproxy. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.6%top 51.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in `HttpConnectionManager` (HCM) with `EnvoyQuicServerStream` that can crash Envoy. An attacker can exploit this vulnerability by sending a request without `FIN`, then a `RESET_STREAM` frame, and then after receiving the response, closing the connection.

Affected products (as reported)

VendorProductVersions
envoyproxy envoy >= 1.30.0, <= 1.30.1>= 1.29.0, <= 1.29.4>= 1.28.0, <= 1.28.3<= 1.27.5

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References