cnvd-2018-06457
Vulnerability from cnvd

Title: Linux kernel内存破坏漏洞（CNVD-2018-06457）

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存在内存破坏漏洞。该漏洞产生的原因是Linux kernel中的drivers/staging/ncpfs/ncplib_kernel.c和fs/ncpfs/ncplib_kernel.c中的ncp_read_kernel函数的未正确的处理缓冲区长度。攻击者可通过恶意NCPFS服务器利用该漏洞导致kernel崩溃或执行代码。

Severity: 高

Patch Name: Linux kernel内存破坏漏洞（CNVD-2018-06457）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存在内存破坏漏洞。该漏洞产生的原因是Linux kernel中的drivers/staging/ncpfs/ncplib_kernel.c和fs/ncpfs/ncplib_kernel.c中的ncp_read_kernel函数的未正确的处理缓冲区长度。攻击者可通过恶意NCPFS服务器利用该漏洞导致kernel崩溃或执行代码。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:

厂商已发布漏洞修复程序，请及时关注更新： https://www.mail-archive.com/netdev@vger.kernel.org/msg223373.html

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-8822

Impacted products
Name
['Linux Kernel <=4.15.11', 'Linux Kernel <=4.16-rc']
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "103476"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8822"
    }
  },
  "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\u5b58\u5728\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662fLinux kernel\u4e2d\u7684drivers/staging/ncpfs/ncplib_kernel.c\u548cfs/ncpfs/ncplib_kernel.c\u4e2d\u7684ncp_read_kernel\u51fd\u6570\u7684\u672a\u6b63\u786e\u7684\u5904\u7406\u7f13\u51b2\u533a\u957f\u5ea6\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6076\u610fNCPFS\u670d\u52a1\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4kernel\u5d29\u6e83\u6216\u6267\u884c\u4ee3\u7801\u3002",
  "discovererName": "Dan Carpenter",
  "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/netdev@vger.kernel.org/msg223373.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06457",
  "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\nLinux kernel\u5b58\u5728\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662fLinux kernel\u4e2d\u7684drivers/staging/ncpfs/ncplib_kernel.c\u548cfs/ncpfs/ncplib_kernel.c\u4e2d\u7684ncp_read_kernel\u51fd\u6570\u7684\u672a\u6b63\u786e\u7684\u5904\u7406\u7f13\u51b2\u533a\u957f\u5ea6\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6076\u610fNCPFS\u670d\u52a1\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4kernel\u5d29\u6e83\u6216\u6267\u884c\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\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2018-06457\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Linux Kernel \u003c=4.15.11",
      "Linux Kernel \u003c=4.16-rc"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8822",
  "serverity": "\u9ad8",
  "submitTime": "2018-03-21",
  "title": "Linux kernel\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2018-06457\uff09"
}


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