Vulnerability-Lookup

CNVD-2022-15542

Vulnerability from cnvd - Published: 2022-03-01

Title

Envoy资源管理错误漏洞（CNVD-2022-15542）

Description

Envoy是一款开源的分布式代理服务器。 Envoy 存在资源管理错误漏洞，该漏洞源于当为上游隧道配置“envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config”时发生崩溃，并且下游连接断开，而上游连接或 http/2 流仍然存在。没有解决此问题的方法。建议用户升级。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

Envoy资源管理错误漏洞（CNVD-2022-15542）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-43826

Impacted products

Name
Envoy Envoy

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-43826"
    }
  },
  "description": "Envoy\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u4ee3\u7406\u670d\u52a1\u5668\u3002\n\nEnvoy \u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u4e3a\u4e0a\u6e38\u96a7\u9053\u914d\u7f6e\u201cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u201d\u65f6\u53d1\u751f\u5d29\u6e83\uff0c\u5e76\u4e14\u4e0b\u6e38\u8fde\u63a5\u65ad\u5f00\uff0c\u800c\u4e0a\u6e38\u8fde\u63a5\u6216 http/2 \u6d41\u4ecd\u7136\u5b58\u5728\u3002 \u6ca1\u6709\u89e3\u51b3\u6b64\u95ee\u9898\u7684\u65b9\u6cd5\u3002 \u5efa\u8bae\u7528\u6237\u5347\u7ea7\u3002 \u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-15542",
  "openTime": "2022-03-01",
  "patchDescription": "Envoy\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u4ee3\u7406\u670d\u52a1\u5668\u3002\r\n\r\nEnvoy \u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u4e3a\u4e0a\u6e38\u96a7\u9053\u914d\u7f6e\u201cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u201d\u65f6\u53d1\u751f\u5d29\u6e83\uff0c\u5e76\u4e14\u4e0b\u6e38\u8fde\u63a5\u65ad\u5f00\uff0c\u800c\u4e0a\u6e38\u8fde\u63a5\u6216 http/2 \u6d41\u4ecd\u7136\u5b58\u5728\u3002 \u6ca1\u6709\u89e3\u51b3\u6b64\u95ee\u9898\u7684\u65b9\u6cd5\u3002 \u5efa\u8bae\u7528\u6237\u5347\u7ea7\u3002 \u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
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  "products": {
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  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-43826",
  "serverity": "\u9ad8",
  "submitTime": "2022-02-24",
  "title": "Envoy\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2022-15542\uff09"
}

CVE-2021-43826 (GCVE-0-2021-43826)

Vulnerability from cvelistv5 – Published: 2022-02-22 22:45 – Updated: 2025-04-23 19:01

Title

Crash when tunneling TCP over HTTP in Envoy

Summary

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 15:57 UTC

CWE

CWE-416 - Use After Free

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/envoyproxy/envoy/security/advi…	x_refsource_CONFIRM
https://github.com/envoyproxy/envoy/commit/ce0ae3…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
envoyproxy	envoy	Affected: < 1.18.6 Affected: >= 1.19.0, < 1.19.3 Affected: >= 1.20.0, < 1.20.2 Affected: >= 1.21.0, < 1.21.1

Show details on NVD website

JSON

To clipboard

{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:03:09.047Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-43826",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:57:19.863004Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:01:09.708Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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          "vendor": "envoyproxy",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.18.6"
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              "status": "affected",
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            },
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            },
            {
              "status": "affected",
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      ],
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      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2022-02-22T22:45:22.000Z",
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        {
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        },
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      ],
      "source": {
        "advisory": "GHSA-cmx3-fvgf-83mf",
        "discovery": "UNKNOWN"
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      "title": "Crash when tunneling TCP over HTTP in Envoy",
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                          {
                            "version_value": "\u003e= 1.20.0, \u003c 1.20.2"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2022-15542

CVE-2021-43826 (GCVE-0-2021-43826)

Tags

Sightings

Nomenclature

Related by attack behaviour