CVE编号
CVE-2021-32780利用情况
暂无补丁情况
N/A披露时间
2021-08-25漏洞描述
Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions Envoy transitions a H/2 connection to the CLOSED state when it receives a GOAWAY frame without any streams outstanding. The connection state is transitioned to DRAINING when it receives a SETTING frame with the SETTINGS_MAX_CONCURRENT_STREAMS parameter set to 0. Receiving these two frames in the same I/O event results in abnormal termination of the Envoy process due to invalid state transition from CLOSED to DRAINING. A sequence of H/2 frames delivered by an untrusted upstream server will result in Denial of Service in the presence of untrusted **upstream** servers. Envoy versions 1.19.1, 1.18.4 contain fixes to stop processing of pending H/2 frames after connection transition to the CLOSED state.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8 | |
| https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | envoyproxy | envoy | * |
From (including) 1.18.0 |
Up to (excluding) 1.18.4 |
||||
| 运行在以下环境 | |||||||||
| 应用 | envoyproxy | envoy | * |
From (including) 1.19.0 |
Up to (excluding) 1.91.1 |
||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | istio-istioctl | * |
Up to (excluding) 1.20.11-4.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | istio-istioctl | * |
Up to (excluding) 1.2.5-2.el8 |
|||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 已更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 无
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