cnvd-2017-07374
Vulnerability from cnvd

Title: Linux kernel KEYS子系统拒绝服务漏洞

Description:

Linux Kernel是Linux操作系统的内核。

Linux kernel 4.10.13之前的版本在KEYS子系统实现中存在拒绝服务漏洞，本地攻击者可利用该漏洞通过一系列KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring调用，造成拒绝服务（内存耗尽）。

Severity: 中

Patch Name: Linux kernel KEYS子系统拒绝服务漏洞的补丁

Patch Description:

Linux Kernel是Linux操作系统的内核。

Linux kernel 4.10.13之前的版本在KEYS子系统实现中存在拒绝服务漏洞，本地攻击者可利用该漏洞通过一系列KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring调用，造成拒绝服务（内存耗尽）。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:

用户可参考如下厂商提供的安全补丁以修复该漏洞： http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b http://openwall.com/lists/oss-security/2017/05/11/1 https://bugzilla.novell.com/show_bug.cgi?id=1034862 https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b https://lkml.org/lkml/2017/4/1/235 https://lkml.org/lkml/2017/4/3/724https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13

Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-7472

Impacted products
Name
Linux kernel <4.10.13
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7472",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7472"
    }
  },
  "description": "Linux Kernel\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.10.13\u4e4b\u524d\u7684\u7248\u672c\u5728KEYS\u5b50\u7cfb\u7edf\u5b9e\u73b0\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u4e00\u7cfb\u5217KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring\u8c03\u7528\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8017\u5c3d\uff09\u3002",
  "discovererName": "Marcus Meissner",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b\r\nhttp://openwall.com/lists/oss-security/2017/05/11/1\r\nhttps://bugzilla.novell.com/show_bug.cgi?id=1034862\r\nhttps://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b\r\nhttps://lkml.org/lkml/2017/4/1/235\r\nhttps://lkml.org/lkml/2017/4/3/724https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-07374",
  "openTime": "2017-05-24",
  "patchDescription": "Linux Kernel\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.10.13\u4e4b\u524d\u7684\u7248\u672c\u5728KEYS\u5b50\u7cfb\u7edf\u5b9e\u73b0\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u4e00\u7cfb\u5217KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring\u8c03\u7528\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8017\u5c3d\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 KEYS\u5b50\u7cfb\u7edf\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c4.10.13"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-7472",
  "serverity": "\u4e2d",
  "submitTime": "2017-05-15",
  "title": "Linux kernel KEYS\u5b50\u7cfb\u7edf\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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