Vulnerability-Lookup

CNVD-2020-37894

Vulnerability from cnvd - Published: 2020-07-09

Title

Tendermint拒绝服务漏洞

Description

Tendermint是美国Tendermint公司的一款Byzantine Fault Tolerant (BFT) 式中间件。 Tendermint 0.33.3之前版本、0.32.10之前版本和0.31.12版本中存在拒绝服务漏洞，该漏洞源于程序未能限制P2P连接请求的数量。攻击者可利用该漏洞造成拒绝服务。

Severity

中

Patch Name

Tendermint拒绝服务漏洞的补丁

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/tendermint/tendermint/security/advisories/GHSA-v24h-pjjv-mcp6

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-5303

Impacted products

Name
['Tendermint Tendermint <0.33.3', 'Tendermint Tendermint <0.32.10', 'Tendermint Tendermint 0.31.12']

Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5303"
    }
  },
  "description": "Tendermint\u662f\u7f8e\u56fdTendermint\u516c\u53f8\u7684\u4e00\u6b3eByzantine Fault Tolerant (BFT) \u5f0f\u4e2d\u95f4\u4ef6\u3002\n\nTendermint 0.33.3\u4e4b\u524d\u7248\u672c\u30010.32.10\u4e4b\u524d\u7248\u672c\u548c0.31.12\u7248\u672c\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236P2P\u8fde\u63a5\u8bf7\u6c42\u7684\u6570\u91cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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/tendermint/tendermint/security/advisories/GHSA-v24h-pjjv-mcp6",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-37894",
  "openTime": "2020-07-09",
  "patchDescription": "Tendermint\u662f\u7f8e\u56fdTendermint\u516c\u53f8\u7684\u4e00\u6b3eByzantine Fault Tolerant (BFT) \u5f0f\u4e2d\u95f4\u4ef6\u3002\r\n\r\nTendermint 0.33.3\u4e4b\u524d\u7248\u672c\u30010.32.10\u4e4b\u524d\u7248\u672c\u548c0.31.12\u7248\u672c\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236P2P\u8fde\u63a5\u8bf7\u6c42\u7684\u6570\u91cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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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      "Tendermint Tendermint \u003c0.32.10",
      "Tendermint Tendermint 0.31.12"
    ]
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-5303",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-13",
  "title": "Tendermint\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-5303 (GCVE-0-2020-5303)

Vulnerability from cvelistv5 – Published: 2020-04-10 18:30 – Updated: 2024-08-04 08:22

Title

Denial of service in Tendermint

Summary

Tendermint before versions 0.33.3, 0.32.10, and 0.31.12 has a denial-of-service vulnerability. Tendermint does not limit the number of P2P connection requests. For each p2p connection, it allocates XXX bytes. Even though this memory is garbage collected once the connection is terminated (due to duplicate IP or reaching a maximum number of inbound peers), temporary memory spikes can lead to OOM (Out-Of-Memory) exceptions. Additionally, Tendermint does not reclaim activeID of a peer after it's removed in Mempool reactor. This does not happen all the time. It only happens when a connection fails (for any reason) before the Peer is created and added to all reactors. RemovePeer is therefore called before AddPeer, which leads to always growing memory (activeIDs map). The activeIDs map has a maximum size of 65535 and the node will panic if this map reaches the maximum. An attacker can create a lot of connection attempts (exploiting above denial of service), which ultimately will lead to the node panicking. These issues are patched in Tendermint 0.33.3 and 0.32.10.

Severity

3.1 (Low)


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

CWE

CWE-789 - Uncontrolled Memory Allocation

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/tendermint/tendermint/security…	x_refsource_CONFIRM
https://hackerone.com/reports/820317	x_refsource_MISC
https://github.com/tendermint/tendermint/commit/e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Tendermint	Tendermint	Affected: >= 0.32.0, < 0.32.10 Affected: >= 0.33.0, < 0.33.3 Affected: < 0.31.12

Show details on NVD website

JSON

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{
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          "dateUpdated": "2024-08-04T08:22:09.074Z",
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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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

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.