CVE-2014-8481

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:rc1:*:*:*:*:*:*", "matchCriteriaId": "1892B391-62DB-4D08-9E2F-049AAA4840AD", "versionEndIncluding": "3.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 does not properly handle invalid instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application that triggers (1) an improperly fetched instruction or (2) an instruction that occupies too many bytes. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8480."}, {"lang": "es", "value": "El decodificador de instrucciones en arch/x86/kvm/emulate.c en el subsistema KVM en el kernel de Linux anterior a 3.18-rc2 no maneja debidamente las instrucciones inv\u00e1lidas, lo que permite a usuarios del sistema operativo invitado causar una denegaci\u00f3n de servicio (referencia a puntero nulo y ca\u00edda del sistema operativo anfitri\u00f3n) a trav\u00e9s de una aplicaci\u00f3n manipulada que provoca (1) una instrucci\u00f3n tra\u00edda indebidamente o (2) una instrucci\u00f3n que ocupa demasiados bytes. NOTA: esta vulnerabilidad existe debido a una soluci\u00f3n incompleta para CVE-2014-8480."}], "id": "CVE-2014-8481", "lastModified": "2026-06-17T00:16:47.280", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2014-11-10T11:55:09.767", "references": [{"source": "cve@mitre.org", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a430c9166312e1aa3d80bce32374233bdbfeba32"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/62042"}, {"source": "cve@mitre.org", "url": "http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "http://www.openwall.com/lists/oss-security/2014/10/23/7"}, {"source": "cve@mitre.org", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1156615"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "https://github.com/torvalds/linux/commit/a430c9166312e1aa3d80bce32374233bdbfeba32"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a430c9166312e1aa3d80bce32374233bdbfeba32"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/62042"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://www.openwall.com/lists/oss-security/2014/10/23/7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1156615"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://github.com/torvalds/linux/commit/a430c9166312e1aa3d80bce32374233bdbfeba32"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Andy Lutomirski and Nadav Amit for reporting this issue.", "bugzilla": {"description": "kernel: kvm: NULL pointer dereference during rip relative instruction emulation", "id": "1156615", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1156615"}, "csaw": false, "cvss": {"cvss_base_score": "6.1", "cvss_scoring_vector": "AV:A/AC:L/Au:N/C:N/I:N/A:C", "status": "draft"}, "cwe": "CWE-476", "details": ["The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 does not properly handle invalid instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application that triggers (1) an improperly fetched instruction or (2) an instruction that occupies too many bytes. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8480."], "name": "CVE-2014-8481", "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": "kvm", "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:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2014-10-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-8481\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-8481"], "statement": "These issues do not affect Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.\nThese issues do not affect kvm packages as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Important"}

{}