Public vulnerability disclosure

CVE-2024-32974

Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete()

publishedCWE-416

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.

Technical severity5.9 mediumCVSS 3.1 · CNA: GitHub_M
Published2024-06-04Source updated 2026-11-05
Collected2026-11-052 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
envoy
envoyproxy
>= 1.30.0, <= 1.30.1 (affected)
>= 1.29.0, <= 1.29.4 (affected)
>= 1.28.0, <= 1.28.3 (affected)
<= 1.27.5 (affected)
CNA: GitHub_M

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 5.9
medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HCNA: GitHub_M

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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