cnvd - cnvd-2022-68087

cnvd-2022-68087

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2022-68087）

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，该漏洞源于锁定不当，在Linux内核声音子系统中发现了竞争条件缺陷，处理SNDCTL_DSP_SYNC ioctl 时，它可能会导致NULL指针取消引用，攻击者可利用该漏洞使系统崩溃。

Severity: 低

Patch Name: Linux kernel拒绝服务漏洞（CNVD-2022-68087）的补丁

Patch 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，该漏洞源于锁定不当，在Linux内核声音子系统中发现了竞争条件缺陷，处理SNDCTL_DSP_SYNC ioctl 时，它可能会导致NULL指针取消引用，攻击者可利用该漏洞使系统崩溃。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:

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/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d

Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-3303

Impacted products

Name
['Linux Linux kernel', 'Linux Linux kernel 6.0 rc3', 'Linux Linux kernel 6.0 rc1', 'Linux Linux kernel 6.0 rc2', 'Linux Linux kernel 6.0 rc4']

Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-3303",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-3303"
    }
  },
  "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\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9501\u5b9a\u4e0d\u5f53\uff0c\u5728Linux\u5185\u6838\u58f0\u97f3\u5b50\u7cfb\u7edf\u4e2d\u53d1\u73b0\u4e86\u7ade\u4e89\u6761\u4ef6\u7f3a\u9677\uff0c\u5904\u7406SNDCTL_DSP_SYNC ioctl \u65f6\uff0c\u5b83\u53ef\u80fd\u4f1a\u5bfc\u81f4NULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-68087",
  "openTime": "2022-10-10",
  "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\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9501\u5b9a\u4e0d\u5f53\uff0c\u5728Linux\u5185\u6838\u58f0\u97f3\u5b50\u7cfb\u7edf\u4e2d\u53d1\u73b0\u4e86\u7ade\u4e89\u6761\u4ef6\u7f3a\u9677\uff0c\u5904\u7406SNDCTL_DSP_SYNC ioctl \u65f6\uff0c\u5b83\u53ef\u80fd\u4f1a\u5bfc\u81f4NULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7cfb\u7edf\u5d29\u6e83\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-2022-68087\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Linux Linux kernel",
      "Linux Linux kernel 6.0 rc3",
      "Linux Linux kernel 6.0 rc1",
      "Linux Linux kernel 6.0 rc2",
      "Linux Linux kernel 6.0 rc4"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-3303",
  "serverity": "\u4f4e",
  "submitTime": "2022-09-29",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-68087\uff09"
}

CVE-2022-3303 (GCVE-0-2022-3303)

Vulnerability from cvelistv5

Published

2022-09-27 00:00

Modified

2025-05-21 15:31

Severity ?

4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-667 - ->CWE-362->CWE-476

Summary

A race condition flaw was found in the Linux kernel sound subsystem due to improper locking. It could lead to a NULL pointer dereference while handling the SNDCTL_DSP_SYNC ioctl. A privileged local user (root or member of the audio group) could use this flaw to crash the system, resulting in a denial of service condition

References

▼	URL	Tags
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
	https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/
	https://www.debian.org/security/2022/dsa-5257	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	Linux kernel	Version: Fixed in kernel 6.0-rc5

Show details on NVD website

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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T01:07:06.557Z",
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            "url": "https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/"
          },
          {
            "name": "DSA-5257",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5257"
          },
          {
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            "tags": [
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            "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 4.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
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                "options": [
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-21T15:31:25.170645Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    "cna": {
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          "product": "Linux kernel",
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    "dateReserved": "2022-09-26T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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