CVE Vulnerabilities

CVE-2021-39204

Excessive Iteration

Published: Sep 09, 2021 | Modified: Sep 27, 2021
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

Affected Software

Name Vendor Start Version End Version
Envoy Envoyproxy * 1.16.4 (including)
Envoy Envoyproxy 1.17.0 (including) 1.17.4 (excluding)
Envoy Envoyproxy 1.18.0 (including) 1.18.4 (excluding)
Envoy Envoyproxy 1.19.0 (including) 1.19.0 (including)
Pomerium Pomerium * 0.14.8 (excluding)
Pomerium Pomerium 0.15.0 (including) 0.15.0 (including)

References