CVE-2020-14339

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2020-14339", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-08-04T12:39:36.530Z", "dateReserved": "2020-06-17T00:00:00.000Z", "datePublished": "2020-12-03T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2022-10-16T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."}], "affected": [{"vendor": "n/a", "product": "libvirt", "versions": [{"version": "libvirt 6.6.0", "status": "affected"}]}], "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860069"}, {"name": "GLSA-202101-22", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202101-22"}, {"name": "GLSA-202210-06", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202210-06"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-772", "cweId": "CWE-772"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T12:39:36.530Z"}, "title": "CVE Program Container", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860069", "tags": ["x_transferred"]}, {"name": "GLSA-202101-22", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202101-22"}, {"name": "GLSA-202210-06", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202210-06"}]}]}}

{}

{"affected": [{"affectedData": [{"product": "libvirt", "vendor": "n/a", "versions": [{"status": "affected", "version": "libvirt 6.6.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*", "matchCriteriaId": "C37FC2C5-3E40-4531-AE8C-97EB33B624A2", "versionEndExcluding": "6.7.0", "versionStartIncluding": "6.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*", "matchCriteriaId": "3AA08768-75AF-4791-B229-AE938C780959", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en libvirt, donde filtr\u00f3 un descriptor de archivo para \"/dev/mapper/control\" en el proceso QEMU. Este descriptor de archivo permite que operaciones privilegiadas sean realizadas contra el mapeador de dispositivos en el host. este fallo permite a un usuario o proceso invitado malicioso llevar a cabo operaciones fuera de sus permisos est\u00e1ndar, lo que podr\u00eda causar da\u00f1os graves al sistema operativo del host. La mayor amenaza de esta vulnerabilidad es la confidencialidad, la integridad y la disponibilidad del sistema"}], "id": "CVE-2020-14339", "lastModified": "2026-06-17T02:54:33.993", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-03T17:15:12.207", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860069"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202101-22"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-06"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860069"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202101-22"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-06"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-772"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-772"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Daniel Berrange (Red Hat).", "affected_release": [{"advisory": "RHSA-2020:3586", "cpe": "cpe:/a:redhat:advanced_virtualization:8.2::el8", "package": "virt:8.2-8020120200820190722.863bb0db", "product_name": "Advanced Virtualization for RHEL 8.2.1", "release_date": "2020-09-01T00:00:00Z"}, {"advisory": "RHSA-2020:3586", "cpe": "cpe:/a:redhat:advanced_virtualization:8.2::el8", "package": "virt-devel:8.2-8020120200820190722.863bb0db", "product_name": "Advanced Virtualization for RHEL 8.2.1", "release_date": "2020-09-01T00:00:00Z"}, {"advisory": "RHSA-2020:4676", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt-devel:rhel-8030020200909014558.30b713e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-11-04T00:00:00Z"}, {"advisory": "RHSA-2020:4676", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8030020200909014558.30b713e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-11-04T00:00:00Z"}], "bugzilla": {"description": "libvirt: leak of /dev/mapper/control into QEMU guests", "id": "1860069", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860069"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-772", "details": ["A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.", "A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."], "mitigation": {"lang": "en:us", "value": "This issue is mitigated on Red Hat Enterprise Linux if SELinux is in enforcing mode, which prevents the `/dev/mapper/control` file descriptor from being accessible by a guest user/process."}, "name": "CVE-2020-14339", "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:/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"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Affected", "package_name": "virt:8.2/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Affected", "package_name": "virt:8.3/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-07-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-14339\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-14339"], "statement": "This flaw was introduced in `libvirt` version 6.2.0. Red Hat Enterprise Linux 5, 6, 7, and 8 are not affected by this issue as they shipped an older version of the `libvirt` package which did not include the vulnerable code.\nThis issue affects versions of the `libvirt` package as shipped with Red Hat Enterprise Linux Advanced Virtualization 8. Future `libvirt` package updates for Red Hat Enterprise Linux Advanced Virtualization 8 may address this issue.", "threat_severity": "Important"}

{}