cnvd-2018-24482
Vulnerability from cnvd
Title
Linux kernel无效指针解引用漏洞
Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.17.10及之前版本中的‘io_ctl_map_page()’函数存在安全漏洞，该漏洞源于fs/btrfs/tree-checker.c文件的check_leaf_item没有检测区块族群（block group）条目。攻击者可利用该漏洞造成拒绝服务（逆向引用无效指针和崩溃）。
Severity
高
Patch Name
Linux kernel无效指针解引用漏洞的补丁
Patch Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.17.10及之前版本中的‘io_ctl_map_page()’函数存在安全漏洞，该漏洞源于fs/btrfs/tree-checker.c文件的check_leaf_item没有检测区块族群（block group）条目。攻击者可利用该漏洞造成拒绝服务（逆向引用无效指针和崩溃）。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

厂商已发布漏洞修复程序，请及时关注更新： https://patchwork.kernel.org/patch/10503147/

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-14613
Impacted products
Name
Linux kernel <=4.17.10
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-14613"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 4.17.10\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018io_ctl_map_page()\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8efs/btrfs/tree-checker.c\u6587\u4ef6\u7684check_leaf_item\u6ca1\u6709\u68c0\u6d4b\u533a\u5757\u65cf\u7fa4\uff08block group\uff09\u6761\u76ee\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u9006\u5411\u5f15\u7528\u65e0\u6548\u6307\u9488\u548c\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknown",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://patchwork.kernel.org/patch/10503147/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-24482",
  "openTime": "2018-12-03",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.17.10\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018io_ctl_map_page()\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8efs/btrfs/tree-checker.c\u6587\u4ef6\u7684check_leaf_item\u6ca1\u6709\u68c0\u6d4b\u533a\u5757\u65cf\u7fa4\uff08block group\uff09\u6761\u76ee\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u9006\u5411\u5f15\u7528\u65e0\u6548\u6307\u9488\u548c\u5d29\u6e83\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\u65e0\u6548\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c=4.17.10"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-14613",
  "serverity": "\u9ad8",
  "submitTime": "2018-07-27",
  "title": "Linux kernel\u65e0\u6548\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}


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