cnvd-2017-01870
Vulnerability from cnvd
Title
Linux kernel特权提升漏洞
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux kernel4.9.11及之前的版本中net/dccp/input.c文件的dccp_rcv_state_process函数存在安全漏洞，由于程序未能正确处理DCCP_PKT_REQUEST数据结构。攻击者可借助IPV6_RECVPKTINFO setsockopt系统调用的应用程序，利用该漏洞更改Linux内核内存，导致拒绝服务（系统崩溃）或获取系统上的管理访问权限。
Severity
高
Patch Name
Linux kernel特权提升漏洞的补丁
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。 Linux kernel4.9.11及之前的版本中net/dccp/input.c文件的dccp_rcv_state_process函数存在安全漏洞，由于程序未能正确处理DCCP_PKT_REQUEST数据结构。攻击者可借助IPV6_RECVPKTINFO setsockopt系统调用的应用程序，利用该漏洞更改Linux内核内存，导致拒绝服务（系统崩溃）或获取系统上的管理访问权限。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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/torvalds/linux/commit/5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4

Reference
https://github.com/torvalds/linux/commit/5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4 http://0day5.com/archives/4288/
Impacted products
Name
Linux Kernel <=4.9.11
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-6074"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel4.9.11\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2dnet/dccp/input.c\u6587\u4ef6\u7684dccp_rcv_state_process\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406DCCP_PKT_REQUEST\u6570\u636e\u7ed3\u6784\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9IPV6_RECVPKTINFO setsockopt\u7cfb\u7edf\u8c03\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u66f4\u6539Linux\u5185\u6838\u5185\u5b58\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u83b7\u53d6\u7cfb\u7edf\u4e0a\u7684\u7ba1\u7406\u8bbf\u95ee\u6743\u9650\u3002",
  "discovererName": "Andrey Konovalov",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/torvalds/linux/commit/5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-01870",
  "openTime": "2017-02-24",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel4.9.11\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2dnet/dccp/input.c\u6587\u4ef6\u7684dccp_rcv_state_process\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u7406DCCP_PKT_REQUEST\u6570\u636e\u7ed3\u6784\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9IPV6_RECVPKTINFO setsockopt\u7cfb\u7edf\u8c03\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u66f4\u6539Linux\u5185\u6838\u5185\u5b58\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u83b7\u53d6\u7cfb\u7edf\u4e0a\u7684\u7ba1\u7406\u8bbf\u95ee\u6743\u9650\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\u7279\u6743\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c=4.9.11"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/5edabca9d4cff7f1f2b68f0bac55ef99d9798ba4\r\nhttp://0day5.com/archives/4288/",
  "serverity": "\u9ad8",
  "submitTime": "2017-02-21",
  "title": "Linux kernel\u7279\u6743\u63d0\u5347\u6f0f\u6d1e"
}


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