Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.
References
| Link | Resource |
|---|---|
| https://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253a | Patch Third Party Advisory |
| https://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2p | Issue Tracking Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
01 Mar 2022, 20:47
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 4.3
v3 : 7.5 |
| CPE | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | |
| References | (CONFIRM) https://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2p - Issue Tracking, Third Party Advisory | |
| References | (MISC) https://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253a - Patch, Third Party Advisory | |
| First Time |
Envoyproxy
Envoyproxy envoy |
24 Feb 2022, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade. |
22 Feb 2022, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-02-22 23:15
Updated : 2023-12-10 14:22
NVD link : CVE-2021-43824
Mitre link : CVE-2021-43824
CVE.ORG link : CVE-2021-43824
JSON object : View
Products Affected
envoyproxy
- envoy
CWE
CWE-476
NULL Pointer Dereference