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false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement."}, {"lang": "es", "value": "Las implementaciones de compat IPT_SO_SET_REPLACE y IP6T_SO_SET_REPLACE setsockopt en el subsistema netfilter en el kernel de Linux antes de 4.6.3 permiten a los usuarios locales obtener privilegios o provocar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria) aprovechando el acceso del root en el contenedor para proporcionar un valor de compensaci\u00f3n manipulado que desencadena una disminuci\u00f3n no intencionada."}], "id": "CVE-2016-4997", "lastModified": "2025-04-12T10:46:40.837", "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": 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"}]}, 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{"affected_release": [{"advisory": "RHSA-2016:1875", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-327.36.1.rt56.237.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-09-15T00:00:00Z"}, {"advisory": "RHSA-2016:1847", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-327.36.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-09-15T00:00:00Z"}, {"advisory": "RHSA-2016:1883", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-327.rt56.197.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2016-09-14T00:00:00Z"}], "bugzilla": {"description": "kernel: compat IPT_SO_SET_REPLACE setsockopt", "id": "1349722", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1349722"}, "csaw": false, "cvss": {"cvss_base_score": "7.2", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "status": "verified"}, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-20", "details": ["The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.", "A flaw was discovered in processing setsockopt for 32 bit processes on 64 bit systems. This flaw will allow attackers to alter arbitrary kernel memory when unloading a kernel module. This action is usually restricted to root-privileged users but can also be leveraged if the kernel is compiled with CONFIG_USER_NS and CONFIG_NET_NS and the user is granted elevated privileges."], "name": "CVE-2016-4997", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2016-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-4997\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-4997"], "statement": "This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux  7, MRG-2 and realtime and will be addressed in a future update.", "threat_severity": "Important"}