CVE-2012-3494

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{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "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": "2026-06-16T23:43:20.170", "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"}, {"source": 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{"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2012/09/05/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/55400"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id?1027479"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=851139"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/78265"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201604-03"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue.", "bugzilla": {"description": "kernel: xen: hypercall set_debugreg vulnerability", "id": "851139", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=851139"}, "csaw": false, "cvss": {"cvss_base_score": "5.5", "cvss_scoring_vector": "AV:A/AC:L/Au:S/C:N/I:N/A:C", "status": "draft"}, "details": ["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."], "name": "CVE-2012-3494", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel-xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-09-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-3494\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-3494"], "statement": "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.\nThis issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.", "threat_severity": "Moderate"}

{}