Vulnerability-Lookup

CNVD-2021-50110

Vulnerability from cnvd - Published: 2021-07-13

Title

ZeroMQ libzmq缓冲区溢出漏洞

Description

ZeroMQ libzmq（0MQ）是一个轻量级分布式消息传递引擎核心库。 ZeroMQ libzmq 中存在缓冲区溢出漏洞，该漏洞源于该产品中的zmq：：tcp read在调用时未能验证内存边界，导致越界读操作，攻击者可通过该漏洞获取敏感信息。

Severity

高

Patch Name

ZeroMQ libzmq缓冲区溢出漏洞的补丁

Patch Description

ZeroMQ libzmq（0MQ）是一个轻量级分布式消息传递引擎核心库。 ZeroMQ libzmq 中存在缓冲区溢出漏洞，该漏洞源于该产品中的zmq：：tcp read在调用时未能验证内存边界，导致越界读操作，攻击者可通过该漏洞获取敏感信息。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-36400

Impacted products

Name
ZeroMQ ZeroMQ libzmq

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-36400"
    }
  },
  "description": "ZeroMQ libzmq\uff080MQ\uff09\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u5206\u5e03\u5f0f\u6d88\u606f\u4f20\u9012\u5f15\u64ce\u6838\u5fc3\u5e93\u3002\n\nZeroMQ libzmq \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u4ea7\u54c1\u4e2d\u7684zmq\uff1a\uff1atcp read\u5728\u8c03\u7528\u65f6\u672a\u80fd\u9a8c\u8bc1\u5185\u5b58\u8fb9\u754c\uff0c\u5bfc\u81f4\u8d8a\u754c\u8bfb\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-50110",
  "openTime": "2021-07-13",
  "patchDescription": "ZeroMQ libzmq\uff080MQ\uff09\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u5206\u5e03\u5f0f\u6d88\u606f\u4f20\u9012\u5f15\u64ce\u6838\u5fc3\u5e93\u3002\r\n\r\nZeroMQ libzmq \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u4ea7\u54c1\u4e2d\u7684zmq\uff1a\uff1atcp read\u5728\u8c03\u7528\u65f6\u672a\u80fd\u9a8c\u8bc1\u5185\u5b58\u8fb9\u754c\uff0c\u5bfc\u81f4\u8d8a\u754c\u8bfb\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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",
  "patchName": "ZeroMQ libzmq\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ZeroMQ ZeroMQ libzmq"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-36400",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-02",
  "title": "ZeroMQ libzmq\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-36400 (GCVE-0-2020-36400)

Vulnerability from cvelistv5 – Published: 2021-07-01 02:50 – Updated: 2024-08-04 17:23

Summary

ZeroMQ libzmq 4.3.3 has a heap-based buffer overflow in zmq::tcp_read, a different vulnerability than CVE-2021-20235.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://github.com/google/oss-fuzz-vulns/blob/mai…	x_refsource_MISC
https://github.com/zeromq/libzmq/commit/397ac8085…	x_refsource_MISC

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-04T17:23:10.558Z",
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            ],
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26042"
          },
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            ],
            "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libzmq/OSV-2020-1887.yaml"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306"
          }
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      "providerMetadata": {
        "dateUpdated": "2021-07-01T02:50:56.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "url": "https://github.com/zeromq/libzmq/commit/397ac80850bf8d010fae23dd215db0ee2c677306"
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  "cveMetadata": {
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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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CNVD-2021-50110

CVE-2020-36400 (GCVE-0-2020-36400)

Tags

Sightings

Nomenclature

Related by attack behaviour