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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "matchCriteriaId": "19E6775C-BA58-4D7E-96AB-9283C99D9641", "versionEndIncluding": "2.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors."}, {"lang": "es", "value": "La funci\u00f3n cpu_physical_memory_write_rom_internal en exec.c en QEMU (tambi\u00e9n conocido como Quick Emulator) no omite apropiadamente las regiones MMIO, lo que permite a usuarios invitados privilegiados locales provocar una denegaci\u00f3n de servicio (ca\u00edda del hu\u00e9sped) a trav\u00e9s de vectores no especificados."}], "id": "CVE-2015-8818", "lastModified": "2024-11-21T02:39:15.577", "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": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-12-29T22:59:00.340", "references": [{"source": "secalert@redhat.com", "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b242e0e0e2969c044a318e56f7988bbd84de1f63"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2670.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2671.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2704.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2705.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2706.html"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/03/01/1"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/03/01/10"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1300771"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b242e0e0e2969c044a318e56f7988bbd84de1f63"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2670.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2671.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2704.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2705.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2016-2706.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/03/01/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/03/01/10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1300771"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Donghai Zdh (Alibaba Inc.) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2016:2706", "cpe": "cpe:/a:redhat:openstack:5::el7", "package": "qemu-kvm-rhev-10:2.6.0-27.el7", "product_name": "Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7", "release_date": "2016-11-14T00:00:00Z"}, {"advisory": "RHSA-2016:2705", "cpe": "cpe:/a:redhat:openstack:6::el7", "package": "qemu-kvm-rhev-10:2.6.0-27.el7", "product_name": "Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7", "release_date": "2016-11-14T00:00:00Z"}, {"advisory": "RHSA-2016:2704", "cpe": "cpe:/a:redhat:openstack:7::el7", "package": "qemu-kvm-rhev-10:2.6.0-27.el7", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", "release_date": "2016-11-14T00:00:00Z"}, {"advisory": "RHSA-2016:2670", "cpe": "cpe:/a:redhat:openstack:8::el7", "package": "qemu-kvm-rhev-10:2.6.0-27.el7", "product_name": "Red Hat OpenStack Platform 8.0 (Liberty)", "release_date": "2016-11-07T00:00:00Z"}, {"advisory": "RHSA-2016:2671", "cpe": "cpe:/a:redhat:openstack:9::el7", "package": "qemu-kvm-rhev-10:2.6.0-27.el7", "product_name": "Red Hat OpenStack Platform 9.0 (Mitaka)", "release_date": "2016-11-07T00:00:00Z"}], "bugzilla": {"description": "Qemu: OOB access in address_space_rw leads to segmentation fault", "id": "1300771", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1300771"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:A/AC:H/Au:S/C:P/I:P/A:P", "status": "verified"}, "cwe": "CWE-787", "details": ["The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.", "An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance (denial of service)."], "name": "CVE-2015-8818", "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: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:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2016-01-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-8818\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-8818"], "threat_severity": "Low"}