cnvd-2018-06432
Vulnerability from cnvd
Title
Linux kernel拒绝服务漏洞（CNVD-2018-06432）
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。 4.14.2之前的Linux kernel中的fs/ocfs2/file.c中的ocfs2_setattr函数存在拒绝服务漏洞。本地用户可通过DIO请求利用该漏洞导致拒绝服务（死锁）。
Severity
低
Patch Name
Linux kernel拒绝服务漏洞（CNVD-2018-06432）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。 4.14.2之前的Linux kernel中的fs/ocfs2/file.c中的ocfs2_setattr函数存在拒绝服务漏洞。本地用户可通过DIO请求利用该漏洞导致拒绝服务（死锁）。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=28f5a8a7c033cbf3e32277f4cc9c6afd74f05300

Reference
https://nvd.nist.gov/vuln/detail/CVE-2017-18204
Impacted products
Name
Linux Kernel <4.14.2
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-18204"
    }
  },
  "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\n4.14.2\u4e4b\u524d\u7684Linux kernel\u4e2d\u7684fs/ocfs2/file.c\u4e2d\u7684ocfs2_setattr\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730\u7528\u6237\u53ef\u901a\u8fc7DIO\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u6b7b\u9501\uff09\u3002",
  "discovererName": "unknown",
  "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=28f5a8a7c033cbf3e32277f4cc9c6afd74f05300",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06432",
  "openTime": "2018-03-27",
  "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\n4.14.2\u4e4b\u524d\u7684Linux kernel\u4e2d\u7684fs/ocfs2/file.c\u4e2d\u7684ocfs2_setattr\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730\u7528\u6237\u53ef\u901a\u8fc7DIO\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u6b7b\u9501\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-2018-06432\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c4.14.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-18204",
  "serverity": "\u4f4e",
  "submitTime": "2018-02-28",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-06432\uff09"
}


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