2 lines
5.8 KiB
JSON
2 lines
5.8 KiB
JSON
{"affected":[{"affectedData":[{"defaultStatus":"unaffected","packageName":"kernel","product":"Kernel","repo":"https://git.kernel.org","vendor":"Linux","versions":[{"lessThan":"6.5","status":"affected","version":"3.18","versionType":"custom"}]}],"source":"cve-coordination@google.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"8E857727-2DE9-4334-8C95-B7FB874F17C9","versionEndExcluding":"4.14.326","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"D419C7D6-F33D-4EF8-8950-1CB5DDF6A55D","versionEndExcluding":"4.19.295","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"0707E9FF-8CDE-4AC1-98F3-5BB74EF88F8A","versionEndExcluding":"5.4.253","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"B8DECE4F-2D62-4976-B338-963015198AC8","versionEndExcluding":"5.10.190","versionStartIncluding":"5.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"C552AC9E-23B8-4D7D-AA26-57985BD93962","versionEndExcluding":"5.15.126","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"A0CA013D-55AF-4494-A931-AFC8EA64E875","versionEndExcluding":"6.1.45","versionStartIncluding":"5.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"7BB0D94C-4FCE-46F4-A8D4-062D6A84627A","versionEndExcluding":"6.4.10","versionStartIncluding":"6.2","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*","matchCriteriaId":"46D69DCC-AE4D-4EA5-861C-D60951444C6C","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nWhen fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.\n\nWe recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec."},{"lang":"es","value":"Se puede explotar una vulnerabilidad de use-after-free en el componente Linux kernel's net/sched: cls_fw para conseguir una escalada local de privilegios. Cuando se llama a fw_change() en un filtro existente, toda la estructura tcf_result se copia siempre en la nueva instancia del filtro.Esto causa un problema cuando se actualiza un filtro vinculado a una clase, ya que tcf_unbind_filter() siempre llama a la instancia antigua en la ruta de éxito, disminuyendo filter_cnt de la clase aún referenciada y permitiendo que se elimine, lo que lleva a un Use After Free. Recomendamos actualizar el commit a partir de 76e42ae831991c828cffa8c37736ebfb831ad5ec."}],"id":"CVE-2023-4207","lastModified":"2026-06-17T06:37:18.963","metrics":{"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":"cve-coordination@google.com","type":"Secondary"},{"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":"2023-09-06T14:15:11.453","references":[{"source":"cve-coordination@google.com","tags":["Issue Tracking","Mailing List","Patch","Vendor Advisory"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec"},{"source":"cve-coordination@google.com","tags":["Patch","Vendor Advisory"],"url":"https://kernel.dance/76e42ae831991c828cffa8c37736ebfb831ad5ec"},{"source":"cve-coordination@google.com","tags":["Mailing List","Third Party Advisory","VDB Entry"],"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"source":"cve-coordination@google.com","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2023/dsa-5492"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Mailing List","Patch","Vendor Advisory"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"url":"https://kernel.dance/76e42ae831991c828cffa8c37736ebfb831ad5ec"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory","VDB Entry"],"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://www.debian.org/security/2023/dsa-5492"}],"sourceIdentifier":"cve-coordination@google.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-416"}],"source":"cve-coordination@google.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-416"}],"source":"nvd@nist.gov","type":"Primary"}]}
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