CVE-2021-3982

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-3982", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-08-03T17:09:09.635Z", "dateReserved": "2021-11-19T00:00:00.000Z", "datePublished": "2022-04-29T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2022-11-28T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine."}], "affected": [{"vendor": "n/a", "product": "gnome-shell", "versions": [{"version": "gnome-shell downstream versions using CAP_SYS_NICE", "status": "affected"}]}], "references": [{"url": "https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284"}, {"url": "https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-273", "cweId": "CWE-273"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.635Z"}, "title": "CVE Program Container", "references": [{"url": "https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284", "tags": ["x_transferred"]}, {"url": "https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060", "tags": ["x_transferred"]}]}]}}

{}

{"affected": [{"affectedData": [{"product": "gnome-shell", "vendor": "n/a", "versions": [{"status": "affected", "version": "gnome-shell downstream versions using CAP_SYS_NICE"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnome:gnome-shell:-:*:*:*:*:*:*:*", "matchCriteriaId": "EB26AD18-EB30-48AE-94CD-8573D7D60B34", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine."}, {"lang": "es", "value": "Las distribuciones de Linux que usan la funci\u00f3n CAP_SYS_NICE para gnome-shell pueden estar expuestas a un problema de escalada de privilegios. Un atacante, con permisos de bajo privilegio, puede aprovechar la forma en que CAP_SYS_NICE est\u00e1 actualmente implementado y eventualmente cargar c\u00f3digo para aumentar su prioridad de programaci\u00f3n de procesos conllevando a un posible DoS de otros servicios que son ejecutados en la misma m\u00e1quina"}], "id": "CVE-2021-3982", "lastModified": "2026-06-17T04:06:20.230", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-04-29T17:15:19.927", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-273"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-273"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Tavis Ormandy (Google Project Zero) for reporting this issue.", "bugzilla": {"description": "gnome-shell: Distributions using CAP_SYS_NICE in gnome-shell may be exposed to privilege escalation", "id": "2024174", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024174"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-273", "details": ["Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine."], "name": "CVE-2021-3982", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "gnome-shell", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "gnome-shell", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "gnome-shell", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-11-24T13:36:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3982\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3982"], "statement": "The package gnome-shell as shipped with Red Hat Enterprise Linux 7 and 8 are not affected by this issue as CAP_SYS_NICE capability is not set on both versions.", "threat_severity": "Moderate"}

{}