cnvd - cnvd-2020-37894

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']

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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",
  "patchName": "Tendermint\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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      "Tendermint Tendermint \u003c0.33.3",
      "Tendermint Tendermint \u003c0.32.10",
      "Tendermint Tendermint 0.31.12"
    ]
  },
  "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

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

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

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

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JSON

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{
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:22:09.074Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://hackerone.com/reports/820317"
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            ],
            "url": "https://github.com/tendermint/tendermint/commit/e2d6859afd7dba4cf97c7f7d412e7d8fc908d1cd"
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        ],
        "title": "CVE Program Container"
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          "product": "Tendermint",
          "vendor": "Tendermint",
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      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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."
        }
      ],
      "metrics": [
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      "providerMetadata": {
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          "tags": [
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2020-37894

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

Tags

Sightings

Nomenclature