Vulnerability-Lookup

CNVD-2023-34458

Vulnerability from cnvd - Published: 2023-05-08

Title

Linux Kernel拒绝服务漏洞（CNVD-2023-34458）

Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux Kernel存在拒绝服务漏洞。该漏洞是由于在Linux内核的net/sctp/stream_sched.c中的sctp网络协议中发现了一个空指针解引用问题。如果stream_in分配失败，stream_out将被释放，并将被进一步访问。本地攻击者可利用该漏洞使系统崩溃或可能导致拒绝服务。

Severity

中

Patch Name

Linux Kernel拒绝服务漏洞（CNVD-2023-34458）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=181d8d2066c0

Reference

https://nvd.nist.gov/vuln/detail/CVE-2023-2177

Impacted products

Name
Linux Linux kernel <5.19

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-2177",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-2177"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux Kernel\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8e\u5728Linux\u5185\u6838\u7684net/sctp/stream_sched.c\u4e2d\u7684sctp\u7f51\u7edc\u534f\u8bae\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u95ee\u9898\u3002\u5982\u679cstream_in\u5206\u914d\u5931\u8d25\uff0cstream_out\u5c06\u88ab\u91ca\u653e\uff0c\u5e76\u5c06\u88ab\u8fdb\u4e00\u6b65\u8bbf\u95ee\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\u6216\u53ef\u80fd\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0:\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=181d8d2066c0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-34458",
  "openTime": "2023-05-08",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux Kernel\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8e\u5728Linux\u5185\u6838\u7684net/sctp/stream_sched.c\u4e2d\u7684sctp\u7f51\u7edc\u534f\u8bae\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u95ee\u9898\u3002\u5982\u679cstream_in\u5206\u914d\u5931\u8d25\uff0cstream_out\u5c06\u88ab\u91ca\u653e\uff0c\u5e76\u5c06\u88ab\u8fdb\u4e00\u6b65\u8bbf\u95ee\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\u6216\u53ef\u80fd\u5bfc\u81f4\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": "Linux Kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2023-34458\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c5.19"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-2177",
  "serverity": "\u4e2d",
  "submitTime": "2023-04-21",
  "title": "Linux Kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2023-34458\uff09"
}

CVE-2023-2177 (GCVE-0-2023-2177)

Vulnerability from cvelistv5 – Published: 2023-04-20 00:00 – Updated: 2025-03-18 19:58

Summary

A null pointer dereference issue was found in the sctp network protocol in net/sctp/stream_sched.c in Linux Kernel. If stream_in allocation is failed, stream_out is freed which would further be accessed. A local user could use this flaw to crash the system or potentially cause a denial of service.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-06 15:56 UTC

CWE

CWE-476

Assigner

redhat redhat root Scorecard

References

1 reference

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/n…

Impacted products

1 product

Vendor	Product	Version
n/a	Linux	Affected: Linux Kernel prior to Kernel 5.19 RC17

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:12:20.541Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=181d8d2066c0"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-2177",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-06T15:56:09.595410Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-18T19:58:20.430Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Linux",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux Kernel prior to Kernel 5.19 RC17"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A null pointer dereference issue was found in the sctp network protocol in net/sctp/stream_sched.c in Linux Kernel. If stream_in allocation is failed, stream_out is freed which would further be accessed. A local user could use this flaw to crash the system or potentially cause a denial of service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-04-20T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=181d8d2066c0"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-2177",
    "datePublished": "2023-04-20T00:00:00.000Z",
    "dateReserved": "2023-04-19T00:00:00.000Z",
    "dateUpdated": "2025-03-18T19:58:20.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.
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Action not permitted

CNVD-2023-34458

CVE-2023-2177 (GCVE-0-2023-2177)

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