CVE-2021-39162
High
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.
SeverityHigh
CVSS8.6
Exploit probability—
Product
Envoy
PublishedSep 9, 2021
First seenSep 9, 2021
Weakness typeCWE-754CWE-754
How to fix
Update
- envoyproxy envoy1.18.4 or later
- github.com/pomerium/pomerium0.15.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| envoyproxy envoy | v < 1.18.4, 1.19.0 | 1.18.4 |
| pomerium pomerium | 0.15.0 | — |
| github.com/pomerium/pomeriumGo | v < 0.15.1 | 0.15.1 |
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