CVE-2014-3640

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"value": "La funci\u00f3n sosendto en slirp/udp.c en QEMU anterior a 2.1.2 permite a usuarios locales causar una denegaci\u00f3n de servicio (referencia a puntero nulo) mediante el envi\u00f3 de un paquete udp con un valor de 0 en el pueto y direcci\u00f3n de la fuente, lo que provoca el acceso a un socket no inicializado."}], "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/476.html\">CWE-476: NULL Pointer Dereference</a>", "id": "CVE-2014-3640", "lastModified": "2026-06-17T00:08:40.303", "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}]}, "published": "2014-11-07T19:55:02.713", "references": [{"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2015-0349.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2015-0624.html"}, {"source": "secalert@redhat.com", "url": "http://www.debian.org/security/2014/dsa-3044"}, {"source": "secalert@redhat.com", "tags": ["Third Party 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{"acknowledgement": "Red Hat would like to thank Stephane Duverger (Airbus) and Xavier Mehrenberger for reporting this issue.", "affected_release": [{"advisory": "RHSA-2015:0349", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "qemu-kvm-10:1.5.3-86.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-03-05T00:00:00Z"}, {"advisory": "RHSA-2015:0624", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "qemu-kvm-rhev-10:2.1.2-23.el7", "product_name": "RHEV 3.X Hypervisor and Agents for RHEL-7", "release_date": "2015-03-05T00:00:00Z"}], "bugzilla": {"description": "qemu: slirp: NULL pointer deref in sosendto()", "id": "1144818", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1144818"}, "csaw": false, "cvss": {"cvss_base_score": "4.4", "cvss_scoring_vector": "AV:L/AC:M/Au:S/C:N/I:N/A:C", "status": "verified"}, "cwe": "CWE-476", "details": ["The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.", "A NULL pointer dereference flaw was found in the way QEMU handled UDP packets with a source port and address of 0 when QEMU's user networking was in use. A local guest user could use this flaw to crash the guest."], "name": "CVE-2014-3640", "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": "Affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2014-09-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-3640\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-3640"], "statement": "This issue did not affect the kvm package as shipped with Red Hat Enterprise\nLinux 5.\nRed Hat Product Security has rated this issue as having Low security impact.\nFuture qemu-kvm updates for Red Hat Enterprise Linux 6 and 7 may address this\nissue. For additional information, refer to the Issue Severity\nClassification: https://access.redhat.com/security/updates/classification/.", "threat_severity": "Low"}

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