cnvd - cnvd-2023-34470

cnvd-2023-34470

Vulnerability from cnvd

Title: Linux kernel资源管理错误漏洞（CNVD-2023-34470）

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，该漏洞源于traffic control index filter (tcindex)存在安全问题，在使用已销毁的tcf_ext时调用tcf_exts_exec()，导致释放后重用，攻击者利用该漏洞可以将其权限提升为root。

Severity: 中

Patch Name: Linux kernel资源管理错误漏洞（CNVD-2023-34470）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，该漏洞源于traffic control index filter (tcindex)存在安全问题，在使用已销毁的tcf_ext时调用tcf_exts_exec()，导致释放后重用，攻击者利用该漏洞可以将其权限提升为root。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=ee059170b1f7e94e55fa6cadee544e176a6e59c2

Reference: https://nvd.nist.gov/vuln/detail/CVE-2023-1281

Impacted products

Name
Linux Linux kernel >=4.14，<6.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-1281",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-1281"
    }
  },
  "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\u6e90\u4e8etraffic control index filter (tcindex)\u5b58\u5728\u5b89\u5168\u95ee\u9898\uff0c\u5728\u4f7f\u7528\u5df2\u9500\u6bc1\u7684tcf_ext\u65f6\u8c03\u7528tcf_exts_exec()\uff0c\u5bfc\u81f4\u91ca\u653e\u540e\u91cd\u7528\uff0c\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u5c06\u5176\u6743\u9650\u63d0\u5347\u4e3aroot\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=ee059170b1f7e94e55fa6cadee544e176a6e59c2",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-34470",
  "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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8etraffic control index filter (tcindex)\u5b58\u5728\u5b89\u5168\u95ee\u9898\uff0c\u5728\u4f7f\u7528\u5df2\u9500\u6bc1\u7684tcf_ext\u65f6\u8c03\u7528tcf_exts_exec()\uff0c\u5bfc\u81f4\u91ca\u653e\u540e\u91cd\u7528\uff0c\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u5c06\u5176\u6743\u9650\u63d0\u5347\u4e3aroot\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\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2023-34470\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003e=4.14\uff0c\u003c6.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-1281",
  "serverity": "\u4e2d",
  "submitTime": "2023-03-26",
  "title": "Linux kernel\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2023-34470\uff09"
}

CVE-2023-1281 (GCVE-0-2023-1281)

Vulnerability from cvelistv5

Published

2023-03-22 13:18

Modified

2025-03-05 19:22

Severity ?

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

CWE

CWE-416 - Use After Free

Summary

Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.

References

▼	URL	Tags
	https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2
	http://www.openwall.com/lists/oss-security/2023/04/11/3
	https://security.netapp.com/advisory/ntap-20230427-0004/
	https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
	https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Impacted products

	Vendor	Product	Version
	Linux	Linux Kernel	Version: 4.14 <

Show details on NVD website

JSON

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        "metrics": [
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                "id": "CVE-2023-1281",
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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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