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CNVD-2019-39690

Vulnerability from cnvd - Published: 2019-11-08
VLAI
Title
Linux kernel内存泄漏漏洞(CNVD-2019-39690)
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 4.20.11及更早版本中的fs/exec.c中的kernel_read_file函数存在内存泄漏漏洞。攻击者可利用该漏洞通过触发vfs_read失败导致拒绝服务(内存消耗)。
Severity
Patch Name
Linux kernel内存泄漏漏洞(CNVD-2019-39690)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 4.20.11及更早版本中的fs/exec.c中的kernel_read_file函数存在内存泄漏漏洞。攻击者可利用该漏洞通过触发vfs_read失败导致拒绝服务(内存消耗)。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://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1935698.html

Reference
https://nvd.nist.gov/vuln/detail/CVE-2019-8980
Impacted products
Name
Linux Linux kernel <=4.20.11
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-8980"
    }
  },
  "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\n\nLinux kernel 4.20.11\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684fs/exec.c\u4e2d\u7684kernel_read_file\u51fd\u6570\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u89e6\u53d1vfs_read\u5931\u8d25\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u6d88\u8017\uff09\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1935698.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-39690",
  "openTime": "2019-11-08",
  "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 4.20.11\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684fs/exec.c\u4e2d\u7684kernel_read_file\u51fd\u6570\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u89e6\u53d1vfs_read\u5931\u8d25\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u6d88\u8017\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\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\uff08CNVD-2019-39690\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c=4.20.11"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-8980",
  "serverity": "\u9ad8",
  "submitTime": "2019-02-21",
  "title": "Linux kernel\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\uff08CNVD-2019-39690\uff09"
}



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Nomenclature

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