CVE-2017-7979

{"id": "CVE-2017-7979", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": true, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2017-04-19T23:59:00.153", "references": [{"url": "http://marc.info/?l=linux-netdev&m=149200742616349", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://marc.info/?l=linux-netdev&m=149200746116365", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://marc.info/?l=linux-netdev&m=149200746116366", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://marc.info/?l=linux-netdev&m=149251041420194", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://marc.info/?l=linux-netdev&m=149251041420195", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/97969", "source": "cve@mitre.org"}, {"url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "https://bugzilla.proxmox.com/show_bug.cgi?id=1351", "tags": ["Issue Tracking", "Patch"], "source": "cve@mitre.org"}, {"url": "http://marc.info/?l=linux-netdev&m=149200742616349", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://marc.info/?l=linux-netdev&m=149200746116365", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://marc.info/?l=linux-netdev&m=149200746116366", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://marc.info/?l=linux-netdev&m=149251041420194", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://marc.info/?l=linux-netdev&m=149251041420195", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/97969", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.proxmox.com/show_bug.cgi?id=1351", "tags": ["Issue Tracking", "Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via \"tc filter add\" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org."}, {"lang": "es", "value": "La caracter\u00edstica cookie en la implementaci\u00f3n del paquete de acci\u00f3n API en net/sched/act_api.c en el kernel de Linux 4.11.x hasta la versi\u00f3n 4.11-rc7 no maneja adecuadamente el array tb nlattr, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (acceso a memoria no inicializado y desbordamiento inferior de conteo de referencias y cuelgue o ca\u00edda de sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de comandos \"tc filter add\" en ciertos contextos. NOTA: esto no afecta a kernels estables, como 4.10.x, de kernel.org."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45227BEA-300E-4694-8ADE-D0FA7C560C83"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F27DB1B-125C-416A-8DF1-80EE75E4F972"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64F78CCF-F54B-4D1C-AFA6-DE4076C3A263"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A659506C-868E-4E87-B0D8-E901BC2E9BDC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ACE2C8C3-F2AA-4A39-9D81-B0F8BB82B834"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D67BFFD0-1A52-4F5D-98DB-D94B58FD8D30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7D996F38-22AC-4059-84FC-F7D69CE0CB9B"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}