Vulnerability · Published Jun 4, 2024 · Assigned by GitHub_M

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

Medium 5.9

In plain English

A medium-severity use-after-free in envoy from envoyproxy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.7%top 46.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
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

https://github.com/envoyproxy/envoy/security/advisories/GHSA-mgxp-7hhp-8299 x_refsource_CONFIRM