Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter's check. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, avoid wildcards/prefix domain wildcards in the host's domain configuration.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| envoyproxy | envoy | >= 1.26.0, < 1.26.4, >= 1.25.0, < 1.25.9, >= 1.24.0, < 1.24.10, < 1.23.12 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | ecs-service-connect-agent | v1.26.4.0-1.amzn2023 | ALAS2023-2023-300 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | istio +1 | 1.17.5-1.el9 | ELSA-2023-12771 |
| Oracle Linux 9 | olcnectl +15 | 1.7.2-2.el9 | ELSA-2023-12771 |
| Oracle Linux 9 | virtctl | 0.58.0-3.el9 | ELSA-2023-12771 |
| Oracle Linux 8 | istio +1 | 1.16.7-1.el8 | ELSA-2023-12780, ELSA-2023-12772 |
| Oracle Linux 8 | olcne-rook-chart +1 | 1.7.2-3.el8 | ELSA-2023-12772 |
| Oracle Linux 8 | olcnectl +13 | 1.6.3-1.el8 | ELSA-2023-12780, ELSA-2023-12772 |
| Oracle Linux 8 | virtctl | 0.58.0-3.el8 | ELSA-2023-12772 |
| Oracle Linux 7 | istio +1 | 1.16.7-1.el7 | ELSA-2023-12781 |
| Oracle Linux 7 | olcnectl +13 | 1.6.3-1.el7 | ELSA-2023-12781 |
Advisories 6
- WID-SEC-2023-2058 Red Hat OpenShift Service Mesh und Service Mesh Containers: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 8, 2023
- ELSA-2023-12772 Important: olcne security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 11, 2023
- ELSA-2023-12780 Important: istio security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 8, 2023
- ELSA-2023-12781 Important: istio security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 8, 2023
- ELSA-2023-12771 Important: istio security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 6, 2023
- ALAS2023-2023-300 Important: ecs-service-connect-agent security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 23, 2023