CVE-2012-0218

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "security@debian.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F7D1B7E-C30F-430F-832D-2A405DA1F2D9", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "550223A9-B9F1-440A-8C25-9F0F76AF7301", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "0D532B60-C8DD-4A2F-9D05-E574D23EB754", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen."}, {"lang": "es", "value": "Xen v3.4, v4.0 y v4.1, cuando en el sistema operativo hu\u00e9sped no se ha registrado un controlador para una instrucci\u00f3n syscall o sysenter, no limpia correctamente una bandera para la inyecci\u00f3n de excepciones cuando se inyecta un error de protecci\u00f3n general (General Protection Fault), lo que permite causar una denegaci\u00f3n de servicio (ca\u00edda del SO invitado) a los usuarios de los sistemas operativos de los PV hu\u00e9spedes mediante la activaci\u00f3n de una excepci\u00f3n que normalmente ser\u00eda manejado dentro de Xen.\r\n"}], "id": "CVE-2012-0218", "lastModified": "2026-06-16T23:36:54.890", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 1.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-12-03T21:55:01.440", "references": [{"source": "security@debian.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html"}, {"source": "security@debian.org", "url": "http://secunia.com/advisories/55082"}, {"source": "security@debian.org", "url": "http://security.gentoo.org/glsa/glsa-201309-24.xml"}, {"source": "security@debian.org", "url": "http://www.debian.org/security/2012/dsa-2501"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/55082"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.gentoo.org/glsa/glsa-201309-24.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2012/dsa-2501"}], "sourceIdentifier": "security@debian.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Xen for reporting this issue.", "bugzilla": {"description": "kernel: xen: guest denial of service on syscall/sysenter exception generation", "id": "813908", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=813908"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:N/I:N/A:C", "status": "draft"}, "details": ["Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen."], "name": "CVE-2012-0218", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel-xen", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2012-06-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-0218\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-0218"], "statement": "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5 as we did not have support for sysenter and compat (32bit) version of syscall instructions for PV guests running on the Xen hypervisor (introduced in upstream changeset 16207:aeebd173c3fa).\nThis issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.", "threat_severity": "Moderate"}

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