CVE-2024-32974

HIGHCVSS 7.5/10EPSS 0.69%

Last modified

CVE-2024-32974 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Envoy is a cloud-native, open source edge and service proxy. A crash was observed in `EnvoyQuicServerStream::OnInitialHeadersComplete()` with following call stack. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
0.69%

48.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
EnvoyproxyEnvoy< 1.27.6
EnvoyproxyEnvoy>= 1.28.0, < 1.28.4
EnvoyproxyEnvoy>= 1.29.0, < 1.29.5
EnvoyproxyEnvoy>= 1.30.0, < 1.30.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2024-32974?
CVE-2024-32974 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.
How do I fix CVE-2024-32974?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-32974?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST