CVE-2020-10701

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{"affected": [{"affectedData": [{"product": "libvirt", "vendor": "n/a", "versions": [{"status": "affected", "version": "libvirt 6.2.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*", "matchCriteriaId": "C5D605E3-0646-4A88-BF97-EA6FEBE03225", "versionEndExcluding": "6.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to set the response timeout for all guest agent messages to zero, potentially leading to a denial of service. This flaw affects libvirt versions before 6.2.0."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo de falta de autorizaci\u00f3n en la API libvirt responsable de cambiar el tiempo de espera de respuesta del agente QEMU. Este fallo permite a unas conexiones de solo lectura ajustar el tiempo que libvirt espera a que el agente invitado de QEMU responder a los comandos del agente. Dependiendo del valor de tiempo de espera que es ajustado, este fallo puede hacer a unos comandos del agente invitado cometer un fallo porque el agente no puede responder a tiempo. Usuarios no privilegiados con una conexi\u00f3n de solo lectura podr\u00edan abusar de este fallo para ajustar el tiempo de espera de respuesta para todos los mensajes de agentes invitados en cero,potencialmente conllevando a una denegaci\u00f3n de servicio. Este fallo afecta a versiones de libvirt anteriores a 6.2.0"}], "id": "CVE-2020-10701", "lastModified": "2026-06-17T02:48:16.947", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-27T19:15:07.767", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1819163"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210708-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1819163"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210708-0001/"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Lili Zhu (Red Hat).", "bugzilla": {"description": "libvirt: guest agent timeout can be set under read-only mode leading to DoS", "id": "1819163", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1819163"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-862", "details": ["A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to set the response timeout for all guest agent messages to zero, potentially leading to a denial of service. This flaw affects libvirt versions before 6.2.0.", "A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to set the response timeout for all guest agent messages to zero, potentially leading to a denial of service."], "name": "CVE-2020-10701", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "virt:rhel/libvirt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:8.1/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}], "public_date": "2020-03-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-10701\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-10701"], "statement": "This flaw did not affect the versions of `libvirt` as shipped with Red Hat Enterprise Linux 5, 6, 7, 8 and RHEL Advanced Virtualization, as they did not include the vulnerable code, which was introduced in a later version of the package. Specifically, `libvirt` API to change QEMU agent response timeout was added in `libvirt` upstream version v5.10.0.", "threat_severity": "Moderate"}

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