CVE Vulnerability

CVE-2021-39162

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

8.6 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8 Third Party Advisory
https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ Not Applicable Third Party Advisory
https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*
cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:*
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Information

Published : 2021-09-09 10:15

Updated : 2021-09-27 02:25

NVD link : CVE-2021-39162

Mitre link : CVE-2021-39162

Products Affected
No products.
CWE
CWE-754