CNVD-2015-07657

Vulnerability from cnvd - Published: 2015-11-19
VLAI
Title
Linux kernel IPv6栈拒绝服务漏洞
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 kernel 4.0之前版本的IPv6栈中的net/ipv6/addrconf.c文件存在安全漏洞。由于程序未能检查新的‘MTU’值是否有效。攻击者可通过小于最小值或大于接口MTU(最大传输单元)的值利用该漏洞造成拒绝服务(数据包丢失)。
Severity
中
Patch Name
Linux kernel IPv6栈拒绝服务漏洞的补丁
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 kernel 4.0之前版本的IPv6栈中的net/ipv6/addrconf.c文件存在安全漏洞。由于程序未能检查新的‘MTU’值是否有效。攻击者可通过小于最小值或大于接口MTU(最大传输单元)的值利用该漏洞造成拒绝服务(数据包丢失)。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: https://www.kernel.org/

Reference
https://bugs.launchpad.net/bugs/1500810 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77751427a1ff25b27d47a4c36b12c3c8667855ac
Impacted products
Name
Linux Kernel <4.0
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8215"
    }
  },
  "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 4.0\u4e4b\u524d\u7248\u672c\u7684IPv6\u6808\u4e2d\u7684net/ipv6/addrconf.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u68c0\u67e5\u65b0\u7684\u2018MTU\u2019\u503c\u662f\u5426\u6709\u6548\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c0f\u4e8e\u6700\u5c0f\u503c\u6216\u5927\u4e8e\u63a5\u53e3MTU\uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u7684\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6570\u636e\u5305\u4e22\u5931\uff09\u3002",
  "discovererName": "Luis Henriques (henrix)",
  "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\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07657",
  "openTime": "2015-11-19",
  "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 4.0\u4e4b\u524d\u7248\u672c\u7684IPv6\u6808\u4e2d\u7684net/ipv6/addrconf.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u68c0\u67e5\u65b0\u7684\u2018MTU\u2019\u503c\u662f\u5426\u6709\u6548\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c0f\u4e8e\u6700\u5c0f\u503c\u6216\u5927\u4e8e\u63a5\u53e3MTU\uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u7684\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6570\u636e\u5305\u4e22\u5931\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 IPv6\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c4.0"
  },
  "referenceLink": "https://bugs.launchpad.net/bugs/1500810\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77751427a1ff25b27d47a4c36b12c3c8667855ac",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-18",
  "title": "Linux kernel IPv6\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}



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