Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-400
|
| [email protected] | Primary |
en
CWE-459
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| envoyproxy | envoy | * | <built-in method update of dict object at 0x7e60e86cc280> | Application |
| envoyproxy | envoy | * | <built-in method update of dict object at 0x7e60bac6ea00> | Application |
| envoyproxy | envoy | * | <built-in method update of dict object at 0x7e6110f06d40> | Application |
| envoyproxy | envoy | * | <built-in method update of dict object at 0x7e60e86cc680> | Application |
| nghttp2 | nghttp2 | * | <built-in method update of dict object at 0x7e60e86cef80> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:* |