{"schemaVersion":3,"id":"SUSE-SU-2021:14659-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for grub2\n\nThis update for grub2 fixes the following issues:\n\ngrub2 now implements the new 'SBAT' method for SHIM based secure boot revocation. (bsc#1182057)\n\ngrub2 was updated to the 2.02 version (same as SUSE Linux Enterprise 12 SP3).\n\nFollowing security issues are fixed that can violate secure boot constraints:\n\n- CVE-2020-25632: Fixed a use-after-free in rmmod command (bsc#1176711)\n- CVE-2020-25647: Fixed an out-of-bound write in grub_usb_device_initialize() (bsc#1177883)\n- CVE-2020-27749: Fixed a stack buffer overflow in grub_parser_split_cmdline (bsc#1179264)\n- CVE-2020-27779, CVE-2020-14372: Disallow cutmem and acpi commands in secure boot mode (bsc#1179265 bsc#1175970)\n- CVE-2021-20225: Fixed a heap out-of-bounds write in short form option parser (bsc#1182262)\n- CVE-2021-20233: Fixed a heap out-of-bound write due to mis-calculation of space required for quoting (bsc#1182263)","dates":{"published":"2021-03-02T18:03:21.000Z","modified":"2026-02-04T04:15:37.309Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"suse","product":"grub2&distro=SUSE Linux Enterprise Server 11 SP4-LTSS","name":"grub2","label":"grub2&distro=SUSE Linux Enterprise Server 11 SP4-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/grub2&distro=SUSE Linux Enterprise Server 11 SP4-LTSS","purlType":"rpm","versions":[{"text":"< 2.02-0.66.26.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.02-0.66.26.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-202114659-1/","label":"www.suse.com/support/update/announcement/2021/suse-su-202114659-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1175970","label":"bugzilla.suse.com/1175970","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1176711","label":"bugzilla.suse.com/1176711","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1177883","label":"bugzilla.suse.com/1177883","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1179264","label":"bugzilla.suse.com/1179264","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1179265","label":"bugzilla.suse.com/1179265","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1182057","label":"bugzilla.suse.com/1182057","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1182262","label":"bugzilla.suse.com/1182262","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1182263","label":"bugzilla.suse.com/1182263","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9763","label":"www.suse.com/security/cve/CVE-2017-9763","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14372","label":"www.suse.com/security/cve/CVE-2020-14372","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25632","label":"www.suse.com/security/cve/CVE-2020-25632","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25647","label":"www.suse.com/security/cve/CVE-2020-25647","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27749","label":"www.suse.com/security/cve/CVE-2020-27749","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27779","label":"www.suse.com/security/cve/CVE-2020-27779","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20225","label":"www.suse.com/security/cve/CVE-2021-20225","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20233","label":"www.suse.com/security/cve/CVE-2021-20233","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2017-9763","CVE-2020-14372","CVE-2020-25632","CVE-2020-25647","CVE-2020-27749","CVE-2020-27779","CVE-2021-20225","CVE-2021-20233"],"downstream":[],"duplicates":[],"related":["CVE-2017-9763","CVE-2020-14372","CVE-2020-25632","CVE-2020-25647","CVE-2020-27749","CVE-2020-27779","CVE-2021-20225","CVE-2021-20233"]},"timeline":[{"kind":"published","date":"2021-03-02T18:03:21.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T04:15:37.309Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T11:35:45.968Z","stale":false,"partial":false}}