CNVD-2015-07684

Vulnerability from cnvd - Published: 2015-11-20
VLAI
Title
Ubuntu lxd程序包模式错误漏洞
Description
Ubuntu lxd package是英国科能(Canonical)公司和Ubuntu基金会共同开发的一个Linux Container Daemon(OpenStack工作环境)包。 Ubuntu lxd程序包0.20-0ubuntu4.1之前版本的lxd-unix.socket systemd unit文件存在安全漏洞。由于程序为/var/lib/lxd/unix.socket文件分配全局可读权限。本地攻击者可利用该漏洞获取权限。
Severity
Patch Name
Ubuntu lxd程序包模式错误漏洞的补丁
Patch Description
Ubuntu lxd package是英国科能(Canonical)公司和Ubuntu基金会共同开发的一个Linux Container Daemon(OpenStack工作环境)包。 Ubuntu lxd程序包0.20-0ubuntu4.1之前版本的lxd-unix.socket systemd unit文件存在安全漏洞。由于程序为/var/lib/lxd/unix.socket文件分配全局可读权限。本地攻击者可利用该漏洞获取权限。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://www.ubuntu.com/usn/USN-2809-1/

Reference
http://www.ubuntu.com/usn/USN-2809-1 https://github.com/lxc/lxd/issues/1307 https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1515689
Impacted products
Name
canonical ubuntu linux 15.10
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8222"
    }
  },
  "description": "Ubuntu lxd package\u662f\u82f1\u56fd\u79d1\u80fd\uff08Canonical\uff09\u516c\u53f8\u548cUbuntu\u57fa\u91d1\u4f1a\u5171\u540c\u5f00\u53d1\u7684\u4e00\u4e2aLinux Container Daemon\uff08OpenStack\u5de5\u4f5c\u73af\u5883\uff09\u5305\u3002\r\n\r\nUbuntu lxd\u7a0b\u5e8f\u53050.20-0ubuntu4.1\u4e4b\u524d\u7248\u672c\u7684lxd-unix.socket systemd unit\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u4e3a/var/lib/lxd/unix.socket\u6587\u4ef6\u5206\u914d\u5168\u5c40\u53ef\u8bfb\u6743\u9650\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\u3002",
  "discovererName": "Jeroen Simonetti",
  "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://www.ubuntu.com/usn/USN-2809-1/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07684",
  "openTime": "2015-11-20",
  "patchDescription": "Ubuntu lxd package\u662f\u82f1\u56fd\u79d1\u80fd\uff08Canonical\uff09\u516c\u53f8\u548cUbuntu\u57fa\u91d1\u4f1a\u5171\u540c\u5f00\u53d1\u7684\u4e00\u4e2aLinux Container Daemon\uff08OpenStack\u5de5\u4f5c\u73af\u5883\uff09\u5305\u3002\r\n\r\nUbuntu lxd\u7a0b\u5e8f\u53050.20-0ubuntu4.1\u4e4b\u524d\u7248\u672c\u7684lxd-unix.socket systemd unit\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u4e3a/var/lib/lxd/unix.socket\u6587\u4ef6\u5206\u914d\u5168\u5c40\u53ef\u8bfb\u6743\u9650\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\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": "Ubuntu lxd\u7a0b\u5e8f\u5305\u6a21\u5f0f\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "canonical ubuntu linux 15.10"
  },
  "referenceLink": "http://www.ubuntu.com/usn/USN-2809-1\r\nhttps://github.com/lxc/lxd/issues/1307\r\nhttps://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1515689",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-19",
  "title": "Ubuntu lxd\u7a0b\u5e8f\u5305\u6a21\u5f0f\u9519\u8bef\u6f0f\u6d1e"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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