CNVD-2015-07804

Vulnerability from cnvd - Published: 2015-11-27
VLAI Severity ?
Title
Red Hat Enterprise Linux grub2程序包代码执行漏洞
Description
Red Hat Enterprise Linux(RHEL)是美国红帽(Red Hat)公司维护和发布的一套面向企业用户的Linux操作系统。 RHEL 7版本的grub2程序包2.02-0.29之前版本中存在安全漏洞。当程序使用在UEFI系统上时,本地攻击者可借助配置文件中的multiboot或multiboot2模块利用该漏洞绕过既定的Secure Boot限制,执行non-verified代码。
Severity
Patch Name
Red Hat Enterprise Linux grub2程序包代码执行漏洞的补丁
Patch Description
Red Hat Enterprise Linux(RHEL)是美国红帽(Red Hat)公司维护和发布的一套面向企业用户的Linux操作系统。 RHEL 7版本的grub2程序包2.02-0.29之前版本中存在安全漏洞。当程序使用在UEFI系统上时,本地攻击者可借助配置文件中的multiboot或multiboot2模块利用该漏洞绕过既定的Secure Boot限制,执行non-verified代码。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://rhn.redhat.com/errata/RHSA-2015-2401.html

Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1264103 http://www.securitytracker.com/id/1034198 http://rhn.redhat.com/errata/RHSA-2015-2401.html
Impacted products
Name
Red Hat Enterprise Linux (RHEL) 7.0
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5281"
    }
  },
  "description": "Red Hat Enterprise Linux\uff08RHEL\uff09\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7ef4\u62a4\u548c\u53d1\u5e03\u7684\u4e00\u5957\u9762\u5411\u4f01\u4e1a\u7528\u6237\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nRHEL 7\u7248\u672c\u7684grub2\u7a0b\u5e8f\u53052.02-0.29\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528\u5728UEFI\u7cfb\u7edf\u4e0a\u65f6\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684multiboot\u6216multiboot2\u6a21\u5757\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u65e2\u5b9a\u7684Secure Boot\u9650\u5236\uff0c\u6267\u884cnon-verified\u4ee3\u7801\u3002",
  "discovererName": "Stefan Cornelius",
  "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://rhn.redhat.com/errata/RHSA-2015-2401.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07804",
  "openTime": "2015-11-27",
  "patchDescription": "Red Hat Enterprise Linux\uff08RHEL\uff09\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7ef4\u62a4\u548c\u53d1\u5e03\u7684\u4e00\u5957\u9762\u5411\u4f01\u4e1a\u7528\u6237\u7684Linux\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nRHEL 7\u7248\u672c\u7684grub2\u7a0b\u5e8f\u53052.02-0.29\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528\u5728UEFI\u7cfb\u7edf\u4e0a\u65f6\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684multiboot\u6216multiboot2\u6a21\u5757\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u65e2\u5b9a\u7684Secure Boot\u9650\u5236\uff0c\u6267\u884cnon-verified\u4ee3\u7801\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": "Red Hat Enterprise Linux grub2\u7a0b\u5e8f\u5305\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Red Hat Enterprise Linux (RHEL) 7.0"
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1264103\r\nhttp://www.securitytracker.com/id/1034198\r\nhttp://rhn.redhat.com/errata/RHSA-2015-2401.html",
  "serverity": "\u4f4e",
  "submitTime": "2015-11-26",
  "title": "Red Hat Enterprise Linux grub2\u7a0b\u5e8f\u5305\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}


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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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