CVE-2016-7908

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-09-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-12-01T10:57:01.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "[oss-security] 20161003 CVE request Qemu: net: Infinite loop in mcf_fec_do_tx", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/2"}, {"name": "[qemu-devel] 20160922 [PATCH v2] net: mcf: limit buffer descriptor count", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html"}, {"name": "GLSA-201611-11", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/201611-11"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"}, {"name": "openSUSE-SU-2016:3237", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"}, {"name": "93273", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/93273"}, {"name": "[debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html"}, {"name": "[oss-security] 20161003 Re: CVE request Qemu: net: Infinite loop in mcf_fec_do_tx", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/5"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T02:13:20.875Z"}, "title": "CVE Program Container", "references": [{"name": "[oss-security] 20161003 CVE request Qemu: net: Infinite loop in mcf_fec_do_tx", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/2"}, {"name": "[qemu-devel] 20160922 [PATCH v2] net: mcf: limit buffer descriptor count", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html"}, {"name": "GLSA-201611-11", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/201611-11"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"}, {"name": "openSUSE-SU-2016:3237", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"}, {"name": "93273", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/93273"}, {"name": "[debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html"}, {"name": "[oss-security] 20161003 Re: CVE request Qemu: net: Infinite loop in mcf_fec_do_tx", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/5"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-7908", "datePublished": "2016-10-05T16:00:00.000Z", "dateReserved": "2016-09-09T00:00:00.000Z", "dateUpdated": "2024-08-06T02:13:20.875Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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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:qemu:qemu:*:*:*:*:*:*:*:*", "matchCriteriaId": "F83E2010-6463-407A-928D-DB71A705A04C", "versionEndIncluding": "2.7.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."}, {"lang": "es", "value": "La funci\u00f3n mcf_fec_do_tx en hw/net/mcf_fec.c en QEMU (tambi\u00e9n conocido Quick Emulator) no limita adecuadamente el recuento del descriptor de b\u00fafer cuando est\u00e1 transmitiendo paquetes, lo que permite a administradores locales del SO invitado provocar una denegaci\u00f3n de servicio (bucle infinito y ca\u00edda del proceso QEMU) a trav\u00e9s de vectores relacionados con un descriptor de b\u00fafer con una longitud de 0 y valores manipulados en bd.flags."}], "id": "CVE-2016-7908", "lastModified": "2026-06-17T00:53:44.117", "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": "2016-10-05T16:59:11.117", "references": [{"source": "secalert@redhat.com", "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/2"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/5"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/93273"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201611-11"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/10/03/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/93273"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201611-11"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Li Qiang (Qihoo 360 Inc.) for reporting this issue.", "bugzilla": {"description": "Qemu: net: Infinite loop in mcf_fec_do_tx()", "id": "1327465", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1327465"}, "csaw": false, "cvss": {"cvss_base_score": "2.3", "cvss_scoring_vector": "AV:A/AC:M/Au:S/C:N/I:N/A:P", "status": "draft"}, "cvss3": {"cvss3_base_score": "3.0", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-835", "details": ["The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."], "name": "CVE-2016-7908", "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:7", "fix_state": "Will not fix", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openstack:5::el6", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)"}, {"cpe": "cpe:/a:redhat:openstack:6", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux OpenStack Platform 6 (Juno)"}, {"cpe": "cpe:/a:redhat:openstack:7", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)"}, {"cpe": "cpe:/a:redhat:openstack:8", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 8 (Liberty)"}, {"cpe": "cpe:/a:redhat:openstack:9", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 9 (Mitaka)"}], "public_date": "2016-09-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-7908\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-7908"], "threat_severity": "Low"}

{}