cnvd-2017-30420
Vulnerability from cnvd
Title
Linux kernel拒绝服务漏洞（CNVD-2017-30420）
Description
Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux kernel中的security/keys/keyctl.c未考虑NULL payload和非零长度值结合的情况，使本地攻击者可通过特制add_key或keyctl系统调用导致拒绝服务（空指针解引用和OOPS）。
Severity
中
Patch Name
Linux kernel拒绝服务漏洞（CNVD-2017-30420）的补丁
Patch Description
Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux kernel中的security/keys/keyctl.c未考虑NULL payload和非零长度值结合的情况，使本地攻击者可通过特制add_key或keyctl系统调用导致拒绝服务（空指针解引用和OOPS）。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=5649645d725c73df4302428ee4e02c869248b4c5

Reference
https://nvd.nist.gov/vuln/detail/CVE-2017-15274
Impacted products
Name
Linux Kernel <4.11.5
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-15274"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel\u4e2d\u7684security/keys/keyctl.c\u672a\u8003\u8651NULL payload\u548c\u975e\u96f6\u957f\u5ea6\u503c\u7ed3\u5408\u7684\u60c5\u51b5\uff0c\u4f7f\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236add_key\u6216keyctl\u7cfb\u7edf\u8c03\u7528\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u548cOOPS\uff09\u3002",
  "discovererName": "Richard Palethorpe",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\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=5649645d725c73df4302428ee4e02c869248b4c5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-30420",
  "openTime": "2017-10-17",
  "patchDescription": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel\u4e2d\u7684security/keys/keyctl.c\u672a\u8003\u8651NULL payload\u548c\u975e\u96f6\u957f\u5ea6\u503c\u7ed3\u5408\u7684\u60c5\u51b5\uff0c\u4f7f\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236add_key\u6216keyctl\u7cfb\u7edf\u8c03\u7528\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u548cOOPS\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-30420\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c4.11.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-15274",
  "serverity": "\u4e2d",
  "submitTime": "2017-10-12",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-30420\uff09"
}


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