2 lines
2.6 KiB
JSON
2 lines
2.6 KiB
JSON
{"affected":[{"affectedData":[{"product":"kernel","vendor":"n/a","versions":[{"status":"affected","version":"kernel 5.5-rc1"}]}],"source":"secalert@redhat.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"A1E4152E-9A59-4E16-A122-CB88AFCEB7AF","versionEndIncluding":"5.4.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected."},{"lang":"es","value":"Se encontró un fallo en la implementación del kernel de Linux de la coincidencia de cadenas dentro de un paquete. Un usuario privilegiado (con root o función CAP_NET_ADMIN) cuando se insertan las reglas de iptables podría insertar una regla que puede causar pánico en el sistema. El kernel anterior al kernel 5.5-rc1 está afectado"}],"id":"CVE-2021-20177","lastModified":"2026-06-17T03:33:25.347","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":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":0.8,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-05-26T21:15:08.157","references":[{"source":"secalert@redhat.com","tags":["Issue Tracking","Patch","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1914719"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1914719"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-125"}],"source":"secalert@redhat.com","type":"Secondary"}]}
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