cnvd-2016-04424
Vulnerability from cnvd
Title
Linux kernel信息泄露漏洞（CNVD-2016-04424）
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 kernel 3.14-rc4之前3.14-rc版本的kernel/sched/core.c文件中的‘sched_read_attr’函数存在安全漏洞，该漏洞源于程序使用不正确的大小值。本地攻击者可借助特制的sched_getattr系统调用利用该漏洞获取内核栈内存中的敏感信息。
Severity
低
Patch Name
Linux kernel信息泄露漏洞（CNVD-2016-04424）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 kernel 3.14-rc4之前3.14-rc版本的kernel/sched/core.c文件中的‘sched_read_attr’函数存在安全漏洞，该漏洞源于程序使用不正确的大小值。本地攻击者可借助特制的sched_getattr系统调用利用该漏洞获取内核栈内存中的敏感信息。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4efbc454ba68def5ef285b26ebfcfdb605b52755

Reference
https://github.com/torvalds/linux/commit/4efbc454ba68def5ef285b26ebfcfdb605b52755
Impacted products
Name
Linux kernel 3.14-rc<3.14-rc4
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2014-9903"
    }
  },
  "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 kernel 3.14-rc4\u4e4b\u524d3.14-rc\u7248\u672c\u7684kernel/sched/core.c\u6587\u4ef6\u4e2d\u7684\u2018sched_read_attr\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u4f7f\u7528\u4e0d\u6b63\u786e\u7684\u5927\u5c0f\u503c\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684sched_getattr\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5185\u6838\u6808\u5185\u5b58\u4e2d\u7684\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "Vegard Nossum",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4efbc454ba68def5ef285b26ebfcfdb605b52755",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-04424",
  "openTime": "2016-07-01",
  "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 kernel 3.14-rc4\u4e4b\u524d3.14-rc\u7248\u672c\u7684kernel/sched/core.c\u6587\u4ef6\u4e2d\u7684\u2018sched_read_attr\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u4f7f\u7528\u4e0d\u6b63\u786e\u7684\u5927\u5c0f\u503c\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684sched_getattr\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5185\u6838\u6808\u5185\u5b58\u4e2d\u7684\u654f\u611f\u4fe1\u606f\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\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-04424\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel 3.14-rc\u003c3.14-rc4"
  },
  "referenceLink": "https://github.com/torvalds/linux/commit/4efbc454ba68def5ef285b26ebfcfdb605b52755",
  "serverity": "\u4f4e",
  "submitTime": "2016-06-29",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-04424\uff09"
}


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