CVE-2024-32974

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.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1

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

EPSS

0.69% chance of exploitation in the next 30 days, 50th percentile

Published

2024-06-04

Updated

2024-08-02

Proof-of-concept exploits (1)

• envoyproxy/envoy/security/advisories/GHSA-mgxp-7hhp-8299

References

• CVE Record
• NVD entry

Related

• CVE-2019-18801
• CVE-2019-18836
• CVE-2019-9900
• CVE-2022-29225
• CVE-2023-27487
• CVE-2023-27488