What is CVE-2022-29228?

CVE-2022-29228 is a high-severity vulnerability in Envoyproxy Envoy, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2022-06-09.

How severe is CVE-2022-29228?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-29228 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Envoyproxy Envoy

CVE-2022-29228

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter would try to invoke the remaining filters in the chain after emitting a local response, which triggers an ASSERT() in newer versions and corrupts memory on earlier versions. continueDecoding() shouldn’t ever be called from filters after a local reply has been sent. Users are advised to upgrade. There are no known workarounds for this issue.

EPSS: 0.012 (64.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Envoyproxy Envoy — versions < 1.22.1

Weakness classification (CWE)

Public proof-of-concept exploits

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-29228?: CVE-2022-29228 is a high-severity vulnerability in Envoyproxy Envoy, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2022-06-09.
How severe is CVE-2022-29228?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-29228 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.