CVE-2024-34362 — Use After Free in Envoy

CWE-416 — Use After FreeCWE-400 — Uncontrolled Resource Consumption2 documents2 sources
Severity
5.9MEDIUMNVD
EPSS
0.0%
top 94.47%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Envoyproxy Envoy
Timeline
PublishedJun 4

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 2.2 | Impact: 3.6

Affected Packages2 packages

▶NVDenvoyproxy/envoy1.28.0 — 1.28.4+3
▶CVEListV5envoyproxy/envoy1.27.5+3

📋Vendor Advisories

1
Red Hat
envoy: QUIC stack DoS↗2024-06-04
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