cnvd-2017-04815
Vulnerability from cnvd
Title
Linux kernel ULL空指针引用权限提升漏洞
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。KEYS是其中的一个返回匹配模式的所有键的子系统。 Linux kernel 3.18之前的版本中的KEYS子系统存在安全漏洞。本地攻击者可利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。
Severity
高
Patch Name
Linux kernel ULL空指针引用权限提升漏洞的补丁
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。KEYS是其中的一个返回匹配模式的所有键的子系统。 Linux kernel 3.18之前的版本中的KEYS子系统存在安全漏洞。本地攻击者可利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81

Reference
https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81
Impacted products
Name
Linux Kernel < 3.18
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "97258"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-2647",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2647"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002KEYS\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8fd4\u56de\u5339\u914d\u6a21\u5f0f\u7684\u6240\u6709\u952e\u7684\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 3.18\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684KEYS\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7cfb\u7edf\u5d29\u6e83\uff09\u3002",
  "discovererName": "Igor Redko (Virtuozzo), Andrey Ryabinin (Virtuozzo)",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5:\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-04815",
  "openTime": "2017-04-20",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002KEYS\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8fd4\u56de\u5339\u914d\u6a21\u5f0f\u7684\u6240\u6709\u952e\u7684\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 3.18\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684KEYS\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u7cfb\u7edf\u5d29\u6e83\uff09\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 ULL\u7a7a\u6307\u9488\u5f15\u7528\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c 3.18"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81",
  "serverity": "\u9ad8",
  "submitTime": "2017-04-01",
  "title": "Linux kernel ULL\u7a7a\u6307\u9488\u5f15\u7528\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}


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