CVEvulnerability

CVE-2021-39204

7.5 HIGH Published 2021-09-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-834

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.

Affected configurations

• envoyproxy envoy (<= 1.16.4) • envoyproxy envoy (>= 1.17.0 < 1.17.4) • envoyproxy envoy (>= 1.18.0 < 1.18.4) • envoyproxy envoy 1.19.0 • pomerium pomerium (< 0.14.8) • pomerium pomerium 0.15.0

Related

Weakness · CWE (1)

  • CWE-834 Excessive Iteration weakness

References