CVE-2017-11334

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address_space_write_continue en exec.c en QEMU (tambi\u00e9n conocido como Quick Emulator) permite a los usuarios invitado locales con privilegios del sistema operativo provocar una denegaci\u00f3n de servicio (acceso fuera de los l\u00edmites y detenci\u00f3n de las instancias de la cuenta de invitado) usando qemu_map_ram_ptr para acceder al \u00e1rea del bloque de memoria ram del invitado."}], "id": "CVE-2017-11334", "lastModified": "2026-06-17T01:01:38.220", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-08-02T19:29:00.710", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.debian.org/security/2017/dsa-3925"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2017/07/17/4"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/99895"}, {"source": "cve@mitre.org", "tags": 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{"acknowledgement": "Red Hat would like to thank Alex for reporting this issue.", "affected_release": [{"advisory": "RHSA-2017:3473", "cpe": "cpe:/a:redhat:openstack:6::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3472", "cpe": "cpe:/a:redhat:openstack:7::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3474", "cpe": "cpe:/a:redhat:openstack:10::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat OpenStack Platform 10.0 (Newton)", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3466", "cpe": "cpe:/a:redhat:openstack:11::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat OpenStack Platform 11.0 (Ocata)", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3471", "cpe": "cpe:/a:redhat:openstack:8::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat OpenStack Platform 8.0 (Liberty)", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3470", "cpe": "cpe:/a:redhat:openstack:9::el7", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat OpenStack Platform 9.0 (Mitaka)", "release_date": "2017-12-14T00:00:00Z"}, {"advisory": "RHSA-2017:3369", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "qemu-kvm-rhev-10:2.9.0-16.el7_4.11", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2017-11-30T00:00:00Z"}], "bugzilla": {"description": "Qemu: exec: oob access during dma operation", "id": "1471638", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1471638"}, "csaw": false, "cvss": {"cvss_base_score": "3.8", "cvss_scoring_vector": "AV:A/AC:M/Au:S/C:N/I:P/A:P", "status": "verified"}, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L", "status": "verified"}, "cwe": "CWE-787", "details": ["The address_space_write_continue function in exec.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area.", "Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS."], "name": "CVE-2017-11334", "package_state": [{"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:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openstack:5::el6", "fix_state": "Affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)"}, {"cpe": "cpe:/a:redhat:openstack:12", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 12 (Pike)"}], "public_date": "2017-07-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-11334\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-11334"], "threat_severity": "Moderate"}

{}