cnvd-2017-02483
Vulnerability from cnvd
Title
Linux kernel拒绝服务漏洞（CNVD-2017-02483）
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 4.9.11之前版本中net/ipv4/tcp.c文件的tcp_splice_read函数存在拒绝服务漏洞，允许远程攻击者通过涉及具有URG标志的TCP数据包的向量引起拒绝服务（无限循环和软锁定）。
Severity
中
Patch Name
Linux kernel拒绝服务漏洞（CNVD-2017-02483）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 4.9.11之前版本中net/ipv4/tcp.c文件的tcp_splice_read函数存在拒绝服务漏洞，允许远程攻击者通过涉及具有URG标志的TCP数据包的向量引起拒绝服务（无限循环和软锁定）。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，详情请关注厂商主页: http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11

Reference
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11 http://www.securityfocus.com/bid/96421
Impacted products
Name
Linux Kernel <4.9.11
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "96421"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-6214",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6214"
    }
  },
  "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 4.9.11\u4e4b\u524d\u7248\u672c\u4e2dnet/ipv4/tcp.c\u6587\u4ef6\u7684tcp_splice_read\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u6d89\u53ca\u5177\u6709URG\u6807\u5fd7\u7684TCP\u6570\u636e\u5305\u7684\u5411\u91cf\u5f15\u8d77\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\u548c\u8f6f\u9501\u5b9a\uff09\u3002",
  "discovererName": "Salvatore Bonaccorso",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875:\r\nhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-02483",
  "openTime": "2017-03-07",
  "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 4.9.11\u4e4b\u524d\u7248\u672c\u4e2dnet/ipv4/tcp.c\u6587\u4ef6\u7684tcp_splice_read\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u6d89\u53ca\u5177\u6709URG\u6807\u5fd7\u7684TCP\u6570\u636e\u5305\u7684\u5411\u91cf\u5f15\u8d77\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\u548c\u8f6f\u9501\u5b9a\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-02483\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c4.9.11"
  },
  "referenceLink": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11\r\nhttp://www.securityfocus.com/bid/96421",
  "serverity": "\u4e2d",
  "submitTime": "2017-02-24",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-02483\uff09"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.