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CVE-2021-39162

nvd nist
Published: Sep 9, 2021Modified: Jun 17, 2026

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8.6
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 4.0
Source: NVD (Secondary)

Description

Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.

Affected (3)

Envoyproxy
1 product
Envoy
Pomerium
1 product
Pomerium
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Envoyproxy
Envoy
Before 1.18.4
Envoy
Version 1.19.0
Pomerium
Version 0.15.0

Related CWEs

CWE-754
Improper Check for Unusual or Exceptional Conditions
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

References (6)

Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Not ApplicableThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Not ApplicableThird Party Advisory

Timeline

No history available yet.