CVE-2019-10168

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Los clientes de solo lectura podr\u00edan especificar una ruta de acceso arbitraria para este argumento, causando que libvirtd activara un ejecutable dise\u00f1ado con sus propios privilegios."}], "id": "CVE-2019-10168", "lastModified": "2026-06-17T02:10:24.110", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "secalert@redhat.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-08-02T13:15:12.247", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/libvirt-privesc-vulnerabilities"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202003-18"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/libvirt-privesc-vulnerabilities"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10168"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202003-18"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-250"}, {"lang": "en", "value": "CWE-284"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by Jan Tomko (Red Hat).", "affected_release": [{"advisory": "RHSA-2019:1579", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "libvirt-0:4.5.0-10.el7_6.12", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-06-20T00:00:00Z"}, {"advisory": "RHSA-2019:1580", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8000020190618154454.f8e95b4e", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-06-20T00:00:00Z"}, {"advisory": "RHSA-2019:1762", "cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "package": "virt:8.0.0-8000020190620145550.f8e95b4e", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization", "release_date": "2019-07-11T00:00:00Z"}, {"advisory": "RHSA-2019:1699", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "redhat-release-virtualization-host-0:4.3.4-1.el7ev", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2019-07-08T00:00:00Z"}, {"advisory": "RHSA-2019:1699", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "redhat-virtualization-host-0:4.3.4-20190620.3.el7_6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2019-07-08T00:00:00Z"}], "bugzilla": {"description": "libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs", "id": "1720118", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1720118"}, "csaw": true, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "verified"}, "cwe": "(CWE-284|CWE-250)", "details": ["The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept an \"emulator\" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.", "The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs accept an \"emulator\" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges."], "mitigation": {"lang": "en:us", "value": "The Unix permissions of libvirt's read-only socket can be made more restrictive than the default (0777) by editing `/etc/libvirt/libvirtd.conf`. The settings `unix_sock_group = libvirt` and `unix_sock_ro_perms = 0770` will restrict access to only members of `libvirt`, who already have management access to virtual machines."}, "name": "CVE-2019-10168", "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:/a:redhat:storage:3", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Storage 3"}], "public_date": "2019-06-20T12:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-10168\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-10168\nhttps://access.redhat.com/libvirt-privesc-vulnerabilities"], "statement": "* This vulnerability requires access to the libvirt socket, normally in /var/run/libvirt/libvirt_sock_ro. Typically in hypervisor environments, local user accounts are not supported so no untrusted users should be able to access this socket.\n* Red Hat Gluster Storage 3 is not affected by this vulnerability as libvirtd daemon is not shipped in Gluster.", "threat_severity": "Important"}

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