CVE-2021-39162 describes a Denial of Service (DoS) vulnerability in Pomerium, an identity-aware access proxy, and its underlying Envoy proxy. This flaw allows an untrusted upstream server to abnormally terminate the Envoy process by sending specific H/2 GOAWAY and SETTINGS frames simultaneously. Rated 8.6 HIGH (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H), the vulnerability is network-exploitable with low complexity, potentially leading to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.18.4CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | ||
1.19.0CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:* | ||
0.15.0CPE matchmatch criteria | cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.