cnvd-2016-01703
Vulnerability from cnvd
Title
Android Linux kernel安全绕过漏洞
Description
Android是美国谷歌（Google）公司和开放手持设备联盟（简称OHA）共同开发的一套以Linux为基础的开源操作系统。Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Android 2016-03-01之前6.0.1版本中使用的Linux kernel 4.3之前版本中的include/linux/poison.h文件的LIST_POISON功能存在安全漏洞，该漏洞源于程序未正确比较当前指针值与mmap_min_addr值的大小。攻击者可通过触发未初始化的列表条目的使用利用该漏洞绕过poison-pointer保护机制。
Severity
中
Patch Name
Android Linux kernel安全绕过漏洞的补丁
Patch Description
Android是美国谷歌（Google）公司和开放手持设备联盟（简称OHA）共同开发的一套以Linux为基础的开源操作系统。Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Android 2016-03-01之前6.0.1版本中使用的Linux kernel 4.3之前版本中的include/linux/poison.h文件的LIST_POISON功能存在安全漏洞，该漏洞源于程序未正确比较当前指针值与mmap_min_addr值的大小。攻击者可通过触发未初始化的列表条目的使用利用该漏洞绕过poison-pointer保护机制。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://source.android.com/security/bulletin/2016-03-01.html http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf

Reference
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf http://www.openwall.com/lists/oss-security/2015/05/02/6
Impacted products
Name
['Google Android 6.0.1(<2016-03-01)', 'Linux Kernel <4.3']
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-0821"
    }
  },
  "description": "Android\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u548c\u5f00\u653e\u624b\u6301\u8bbe\u5907\u8054\u76df\uff08\u7b80\u79f0OHA\uff09\u5171\u540c\u5f00\u53d1\u7684\u4e00\u5957\u4ee5Linux\u4e3a\u57fa\u7840\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nAndroid 2016-03-01\u4e4b\u524d6.0.1\u7248\u672c\u4e2d\u4f7f\u7528\u7684Linux kernel 4.3\u4e4b\u524d\u7248\u672c\u4e2d\u7684include/linux/poison.h\u6587\u4ef6\u7684LIST_POISON\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u6b63\u786e\u6bd4\u8f83\u5f53\u524d\u6307\u9488\u503c\u4e0emmap_min_addr\u503c\u7684\u5927\u5c0f\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e6\u53d1\u672a\u521d\u59cb\u5316\u7684\u5217\u8868\u6761\u76ee\u7684\u4f7f\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7poison-pointer\u4fdd\u62a4\u673a\u5236\u3002",
  "discovererName": "Google",
  "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://source.android.com/security/bulletin/2016-03-01.html\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01703",
  "openTime": "2016-03-17",
  "patchDescription": "Android\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u548c\u5f00\u653e\u624b\u6301\u8bbe\u5907\u8054\u76df\uff08\u7b80\u79f0OHA\uff09\u5171\u540c\u5f00\u53d1\u7684\u4e00\u5957\u4ee5Linux\u4e3a\u57fa\u7840\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nAndroid 2016-03-01\u4e4b\u524d6.0.1\u7248\u672c\u4e2d\u4f7f\u7528\u7684Linux kernel 4.3\u4e4b\u524d\u7248\u672c\u4e2d\u7684include/linux/poison.h\u6587\u4ef6\u7684LIST_POISON\u529f\u80fd\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u6b63\u786e\u6bd4\u8f83\u5f53\u524d\u6307\u9488\u503c\u4e0emmap_min_addr\u503c\u7684\u5927\u5c0f\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e6\u53d1\u672a\u521d\u59cb\u5316\u7684\u5217\u8868\u6761\u76ee\u7684\u4f7f\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7poison-pointer\u4fdd\u62a4\u673a\u5236\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": "Android Linux kernel\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Google Android 6.0.1(\u003c2016-03-01)",
      "Linux Kernel \u003c4.3"
    ]
  },
  "referenceLink": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf\r\nhttp://www.openwall.com/lists/oss-security/2015/05/02/6",
  "serverity": "\u4e2d",
  "submitTime": "2016-03-16",
  "title": "Android Linux kernel\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}


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