2 lines
6.7 KiB
JSON
2 lines
6.7 KiB
JSON
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The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."},{"lang":"es","value":"Se encontró un fallo en grub2 en versiones anteriores a 2.06. El analizador de opciones permite a un atacante escribir más allá del final de un búfer asignado a la pila al llamar a determinados comandos con una gran cantidad de formularios de opciones cortos específicos. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, así como la disponibilidad del sistema"}],"id":"CVE-2021-20225","lastModified":"2026-06-17T03:33:30.117","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":6.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":0.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-03-03T17:15:11.973","references":[{"source":"secalert@redhat.com","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1924696"},{"source":"secalert@redhat.com","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/"},{"source":"secalert@redhat.com","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202104-05"},{"source":"secalert@redhat.com","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220325-0001/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1924696"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202104-05"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220325-0001/"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-787"}],"source":"secalert@redhat.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-787"}],"source":"nvd@nist.gov","type":"Primary"}]}
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