CVE-2021-39204
Excessive CPU usage in Pomerium
7.5
HIGH
CVSS 3.1
EPSS 0.41%
Description
Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched.
How to fix CVE-2021-39204
To remediate CVE-2021-39204, upgrade the affected package to a fixed version below.
- —upgrade to 1.16.5 or later
- —upgrade to 0.14.8 or later
Is CVE-2021-39204 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.16.5, >= 1.17.0, < 1.17.4, >= 1.18.0, < 1.18.4, >= 1.19.0, < 1.19.1
- from 0, < 0.14.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |