CNVD-2016-11972

Vulnerability from cnvd - Published: 2016-12-07
VLAI
Title
Linux Kernel本地权限提升漏洞（CNVD-2016-11972）
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux Kernel本地权限提升漏洞。由于创建AF-PACKET套接字时，网络命名空间中需要CAP_NET_RAW，在低权限命名空间可用的系统中（Ubuntu、Fedora等）中可通过未授权进程获取。本地攻击者利用漏洞可在内核中执行任意代码，导致拒绝服务条件，或以管理员权限执行任意代码。
Severity
高
Patch Name
Linux Kernel本地权限提升漏洞（CNVD-2016-11972）的补丁
Patch Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux Kernel本地权限提升漏洞。由于创建AF-PACKET套接字时，网络命名空间中需要CAP_NET_RAW，在低权限命名空间可用的系统中（Ubuntu、Fedora等）中可通过未授权进程获取。本地攻击者利用漏洞可在内核中执行任意代码，导致拒绝服务条件，或以管理员权限执行任意代码。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

厂商已提供漏洞修补方案，请关注如下链接及时更新： https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c

Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1400019
Impacted products
Name
['Ubuntu Ubuntu Linux 12.04 LTS i386', 'Ubuntu Ubuntu Linux 12.04 LTS amd64', 'Ubuntu Ubuntu Linux 16.04 LTS', 'Ubuntu Ubuntu Linux 16.10', 'Ubuntu Ubuntu Linux 14.04 LTS']
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "94692"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-8655"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux Kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u7531\u4e8e\u521b\u5efaAF-PACKET\u5957\u63a5\u5b57\u65f6\uff0c\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\u4e2d\u9700\u8981CAP_NET_RAW\uff0c\u5728\u4f4e\u6743\u9650\u547d\u540d\u7a7a\u95f4\u53ef\u7528\u7684\u7cfb\u7edf\u4e2d\uff08Ubuntu\u3001Fedora\u7b49\uff09\u4e2d\u53ef\u901a\u8fc7\u672a\u6388\u6743\u8fdb\u7a0b\u83b7\u53d6\u3002\u672c\u5730\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u5728\u5185\u6838\u4e2d\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u6761\u4ef6\uff0c\u6216\u4ee5\u7ba1\u7406\u5458\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "Philip Pettersson",
  "formalWay": "\u5382\u5546\u5df2\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u8865\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5982\u4e0b\u94fe\u63a5\u53ca\u65f6\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84ac7260236a49c79eede91617700174c2c19b0c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-11972",
  "openTime": "2016-12-07",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux Kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u7531\u4e8e\u521b\u5efaAF-PACKET\u5957\u63a5\u5b57\u65f6\uff0c\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\u4e2d\u9700\u8981CAP_NET_RAW\uff0c\u5728\u4f4e\u6743\u9650\u547d\u540d\u7a7a\u95f4\u53ef\u7528\u7684\u7cfb\u7edf\u4e2d\uff08Ubuntu\u3001Fedora\u7b49\uff09\u4e2d\u53ef\u901a\u8fc7\u672a\u6388\u6743\u8fdb\u7a0b\u83b7\u53d6\u3002\u672c\u5730\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u5728\u5185\u6838\u4e2d\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u6761\u4ef6\uff0c\u6216\u4ee5\u7ba1\u7406\u5458\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\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\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2016-11972\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ubuntu Ubuntu Linux 12.04 LTS i386",
      "Ubuntu Ubuntu Linux  12.04 LTS amd64",
      "Ubuntu Ubuntu Linux 16.04 LTS",
      "Ubuntu Ubuntu Linux 16.10",
      "Ubuntu Ubuntu Linux 14.04 LTS"
    ]
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1400019",
  "serverity": "\u9ad8",
  "submitTime": "2016-12-07",
  "title": "Linux Kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2016-11972\uff09"
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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