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This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-662", "description": "Improper Synchronization"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2025-11-06T23:16:17.460Z"}, "x_redhatCweChain": "CWE-662: Improper Synchronization"}}, "cveMetadata": {"cveId": "CVE-2024-7409", "state": "PUBLISHED", "dateUpdated": "2025-11-06T23:16:17.460Z", "dateReserved": "2024-08-02T12:25:13.211Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2024-08-05T13:19:27.498Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en el servidor QEMU NBD. Esta vulnerabilidad permite un ataque de denegaci\u00f3n de servicio (DoS) a trav\u00e9s de una sincronizaci\u00f3n incorrecta durante el cierre del socket cuando un cliente mantiene un socket abierto mientras el servidor se desconecta."}], "id": "CVE-2024-7409", "lastModified": "2025-11-03T19:15:44.293", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}]}, "published": "2024-08-05T14:15:35.813", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:10518"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:10528"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:10813"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:6811"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:6818"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:6964"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:7408"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:8991"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:9136"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:9620"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2024:9912"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2024-7409"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2302487"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00011.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250502-0008/"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-662"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:6964", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt-devel:rhel-8100020240905091210.489197e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:6964", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8100020240905091210.489197e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:9136", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "qemu-kvm-17:9.0.0-10.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:7408", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "qemu-kvm-17:7.2.0-14.el9_2.14", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-01T00:00:00Z"}, {"advisory": "RHSA-2024:9912", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "qemu-kvm-17:8.2.0-11.el9_4.8", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2024-11-19T00:00:00Z"}, {"advisory": "RHSA-2024:10813", "cpe": "cpe:/a:redhat:openshift:4.13::el9", "package": "rhcos-413.92.202411212100-0", "product_name": "Red Hat OpenShift Container Platform 4.13", "release_date": "2024-12-12T00:00:00Z"}, {"advisory": "RHSA-2024:6811", "cpe": "cpe:/a:redhat:openshift:4.13::el9", "package": "rhcos-413.92.202409180051-0", "product_name": "Red Hat OpenShift Container Platform 4.13", "release_date": "2024-09-25T00:00:00Z"}, {"advisory": "RHSA-2024:9620", "cpe": "cpe:/a:redhat:openshift:4.14::el9", "package": "rhcos-414.92.202411130444-0", "product_name": "Red Hat OpenShift Container Platform 4.14", "release_date": "2024-11-20T00:00:00Z"}, {"advisory": "RHSA-2024:6818", "cpe": "cpe:/a:redhat:openshift:4.15::el9", "package": "rhcos-415.92.202409162258-0", "product_name": "Red Hat OpenShift Container Platform 4.15", "release_date": "2024-09-25T00:00:00Z"}, {"advisory": "RHSA-2024:8991", "cpe": "cpe:/a:redhat:openshift:4.15::el9", "package": "rhcos-415.92.202411050056-0", "product_name": "Red Hat OpenShift Container Platform 4.15", "release_date": "2024-11-13T00:00:00Z"}, {"advisory": "RHSA-2024:10528", "cpe": "cpe:/a:redhat:openshift:4.16::el9", "package": "rhcos-416.94.202411261619-0", "product_name": "Red Hat OpenShift Container Platform 4.16", "release_date": "2024-12-04T00:00:00Z"}, {"advisory": "RHSA-2024:10518", "cpe": "cpe:/a:redhat:openshift:4.17::el9", "package": "rhcos-417.94.202411261220-0", "product_name": "Red Hat OpenShift Container Platform 4.17", "release_date": "2024-12-03T00:00:00Z"}], "bugzilla": {"description": "QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure", "id": "2302487", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2302487"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-662", "details": ["A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.", "A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-7409", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:8.2/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:av/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt-devel:8.2/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt-devel:av/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}], "public_date": "2024-08-02T11:05:09Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-7409\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-7409"], "statement": "This issue is classified as Moderate severity rather than Important because it primarily results in a denial of service condition rather than a more crucial impact such as data corruption, unauthorized access, or system compromise. The NULL pointer dereference occurs under specific conditions where the NBD server is stopped before nbd_blockdev_client_closed is called, which leads to a segmentation fault and crash of the QEMU process. However, this scenario is mitigated by the fact that it requires a particular sequence of events involving client connection handling and server shutdown. Additionally, proper network segmentation and the use of secure client connections can further reduce the likelihood of this issue being exploited.", "threat_severity": "Moderate"}

{}