Vulnerability-Lookup

CNVD-2022-68594

Vulnerability from cnvd - Published: 2022-10-13

Title

Linux kernel权限提升漏洞（CNVD-2022-68594）

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存在安全漏洞，该漏洞是由于在Kernel/ucount中释放后使用造成的。攻击者可利用此漏洞获取系统上的提升权限。

Severity

中

Patch Name

Linux kernel权限提升漏洞（CNVD-2022-68594）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存在安全漏洞，该漏洞是由于在Kernel/ucount中释放后使用造成的。攻击者可利用此漏洞获取系统上的提升权限。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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5

Reference

https://nvd.nist.gov/vuln/detail/CVE-2022-24122

Impacted products

Name
Linux Linux kernel >5.14，<5.16.4

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-24122",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-24122"
    }
  },
  "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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8e\u5728Kernel/ucount\u4e2d\u91ca\u653e\u540e\u4f7f\u7528\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u83b7\u53d6\u7cfb\u7edf\u4e0a\u7684\u63d0\u5347\u6743\u9650\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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-68594",
  "openTime": "2022-10-13",
  "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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8e\u5728Kernel/ucount\u4e2d\u91ca\u653e\u540e\u4f7f\u7528\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u83b7\u53d6\u7cfb\u7edf\u4e0a\u7684\u63d0\u5347\u6743\u9650\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\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2022-68594\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003e5.14\uff0c\u003c5.16.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-24122",
  "serverity": "\u4e2d",
  "submitTime": "2022-02-09",
  "title": "Linux kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2022-68594\uff09"
}

CVE-2022-24122 (GCVE-0-2022-24122)

Vulnerability from cvelistv5 – Published: 2022-01-29 21:33 – Updated: 2024-08-03 03:59

Summary

kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/torvalds/linux/commit/f9d87929…	x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torv…	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2022/…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-2022022…	x_refsource_CONFIRM

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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.