CVE-2012-3494 (GCVE-0-2012-3494)

Vulnerability from cvelistv5 – Published: 2012-11-23 20:00 – Updated: 2024-08-06 20:05
VLAI
Summary
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1037 records in the last 180 days details
References
URL Tags
http://secunia.com/advisories/55082 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/50530 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/51413 third-party-advisoryx_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://wiki.xen.org/wiki/Security_Announcements#X… x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=851139 x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/50472 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/55400 vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2012/09/05/5 mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://support.citrix.com/article/CTX134708 x_refsource_CONFIRM
http://lists.xen.org/archives/html/xen-announce/2… mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://osvdb.org/85197 vdb-entryx_refsource_OSVDB
http://www.securitytracker.com/id?1027479 vdb-entryx_refsource_SECTRACK
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2012/dsa-2544 vendor-advisoryx_refsource_DEBIAN
Date Public
2012-09-05 00:00
Show details on NVD website
To clipboard 

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              "value": "CWE-264"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
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      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:citrix:xenserver:*:-:*:*:*:*:x64:*",
                    "matchCriteriaId": "2FB5F3E5-D607-4BF5-9BB5-187D2F683F18",
                    "versionEndIncluding": "6.0.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:citrix:xenserver:*:-:*:*:*:*:x86:*",
                    "matchCriteriaId": "CE28A81B-5201-4D49-888C-0160EF78D5F9",
                    "versionEndIncluding": "6.0.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.0.0:-:*:*:*:*:x64:*",
                    "matchCriteriaId": "A5B2BADE-24F0-45A0-BB36-5B0D76D93F5C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.0.0:-:*:*:*:*:x86:*",
                    "matchCriteriaId": "E5CCBFE1-4C48-4F64-8DDC-4A29EC5EBEF7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.1.0:-:*:*:*:*:x64:*",
                    "matchCriteriaId": "16FAE1DD-5E59-407A-857C-244814475212",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.1.0:-:*:*:*:*:x86:*",
                    "matchCriteriaId": "855FD6AA-3288-49C4-BA09-D3685F5928E3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.2.0:-:*:*:*:*:x64:*",
                    "matchCriteriaId": "93206518-71F7-47A6-B980-06D8B0D3B5CE",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.2.0:-:*:*:*:*:x86:*",
                    "matchCriteriaId": "D66B1908-FEEF-455E-8C26-65139BF59900",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register."
          },
          {
            "lang": "es",
            "value": "La hiperllamada et_debugreg en include/asm-x86/debugreg.h en  Xen v4.0, v4.1, y v4.2, y Citrix XenServer v6.0.2 y anteriores, cuando se ejecuta sobre systemas x86-64, permite a usuarios locales del SO invitado generar una denegaci\u00f3n de servicio (ca\u00edda del host) mediante la escritura de ciertos bits reservados para el registro de control DR"
          }
        ],
        "id": "CVE-2012-3494",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 2.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2012-11-23T20:55:03.057",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html"
          },
          {
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html"
          },
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        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:48:55+00:00",
      "cve": "CVE-2012-3494",
      "id": "CVE-2012-3494",
      "initial_release_date": "2012-09-05T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: xen: hypercall set_debugreg vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-3494.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-04-30T02:41:40Z",
      "cve": "CVE-2012-3494",
      "id": "CVE-2012-3494",
      "initial_release_date": "2023-02-15T05:45:41Z",
      "product_status:recommended": "73",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-3494",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-3494.json",
      "version": "9"
    }
  }
}



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