CERTA-2011-AVI-500

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité Xen permet à une personne malveillante de provoquer un déni de service du système hôte depuis un système virtualisé.

Description

Une vulnérabilité, causée par un manque de contrôle lors de l'appel à la version x86_64 de la macro __addr_ok(), permet à une personne malveillante de provoquer l'arrêt inopiné du système hôte depuis un système virtualisé.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None
Impacted products
Vendor Product Description
XEN Xen Xen 3.x ;
XEN N/A Citrix XenServer 5.5 ;
XEN N/A Citrix XenServer 5.6.
XEN N/A Citrix XenServer 5.0 ;
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Xen 3.x ;",
      "product": {
        "name": "Xen",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix XenServer 5.5 ;",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix XenServer 5.6.",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix XenServer 5.0 ;",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "XEN",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Description\n\nUne vuln\u00e9rabilit\u00e9, caus\u00e9e par un manque de contr\u00f4le lors de l\u0027appel \u00e0 la\nversion x86_64 de la macro \\_\\_addr_ok(), permet \u00e0 une personne\nmalveillante de provoquer l\u0027arr\u00eat inopin\u00e9 du syst\u00e8me h\u00f4te depuis un\nsyst\u00e8me virtualis\u00e9.\n\n## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2011-2901",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-2901"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX130325 du 06 septembre 2011    :",
      "url": "http://support.citrix.com/article/CTX130325"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Xen OpenWall du 02 septembre 2011 :",
      "url": "http://www.openwall.com/lists/oss-security/2011/09/02/2"
    }
  ],
  "reference": "CERTA-2011-AVI-500",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2011-09-08T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 Xen permet \u00e0 une personne malveillante de provoquer un\nd\u00e9ni de service du syst\u00e8me h\u00f4te depuis un syst\u00e8me virtualis\u00e9.\n",
  "title": "Vuln\u00e9rabilit\u00e9 dans Xen",
  "vendor_advisories": []
}


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