cnvd-2021-29853
Vulnerability from cnvd
Title
Linux kernel权限提升漏洞（CNVD-2021-29853）
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，该漏洞源于非特权用户名称空间和Ubuntu内核中允许非特权覆盖的补丁的组合，攻击者可利用该漏洞获得更高的特权。
Severity
中
Patch Name
Linux kernel权限提升漏洞（CNVD-2021-29853）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，该漏洞源于非特权用户名称空间和Ubuntu内核中允许非特权覆盖的补丁的组合，攻击者可利用该漏洞获得更高的特权。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=459c7c565ac3

Reference
https://exchange.xforce.ibmcloud.com/vulnerabilities/200108
Impacted products
Name
Linux Linux kernel
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3493"
    }
  },
  "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\u4e8e\u975e\u7279\u6743\u7528\u6237\u540d\u79f0\u7a7a\u95f4\u548cUbuntu\u5185\u6838\u4e2d\u5141\u8bb8\u975e\u7279\u6743\u8986\u76d6\u7684\u8865\u4e01\u7684\u7ec4\u5408\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97\u66f4\u9ad8\u7684\u7279\u6743\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=459c7c565ac3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-29853",
  "openTime": "2021-04-22",
  "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\u4e8e\u975e\u7279\u6743\u7528\u6237\u540d\u79f0\u7a7a\u95f4\u548cUbuntu\u5185\u6838\u4e2d\u5141\u8bb8\u975e\u7279\u6743\u8986\u76d6\u7684\u8865\u4e01\u7684\u7ec4\u5408\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97\u66f4\u9ad8\u7684\u7279\u6743\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-2021-29853\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel"
  },
  "referenceLink": "https://exchange.xforce.ibmcloud.com/vulnerabilities/200108",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-19",
  "title": "Linux kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-29853\uff09"
}


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