CVE-2021-39204CWE-834

Excessive CPU usage in Pomerium

High · published September 9, 2021

CVSS v3.1
7.5
EPSS
2%
Percentile
76.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01662 · 76.5th percentile
Weakness
CWE-834 · Excessive Iteration
Published
2021-09-09T22:10Z
EPSS history
Timeline
  • 09 SEP 22:10Z
    Excessive CPU usage in Pomerium
    cvelistv5