{"schemaVersion":3,"id":"SUSE-SU-2025:21212-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for grub2\n\nThis update for grub2 fixes the following issues:\n\nChanges in grub2:\n\n- CVE-2025-54771: Fixed grub_file_close() does not properly controls the fs refcount (bsc#1252931)\n- CVE-2025-54770: Fixed missing unregister call for net_set_vlan command may lead to use-after-free  (bsc#1252930)\n- CVE-2025-61662: Fixed missing unregister call for gettext command may lead to use-after-free (bsc#1252933)\n- CVE-2025-61663: Fixed missing unregister call for normal commands may lead to use-after-free (bsc#1252934)\n- CVE-2025-61664: Fixed missing unregister call for normal_exit command may lead to use-after-free (bsc#1252935)\n- CVE-2025-61661: Fixed out-of-bounds write in grub_usb_get_string() function (bsc#1252932)\n\n- Bump upstream SBAT generation to 6\n\n- Fix \"sparse file not allowed\" error after grub2-reboot (bsc#1245738)\n- Fix PowerPC network boot prefix to correctly locate grub.cfg (bsc#1249385)\n- turn off page flipping for i386-pc using VBE video backend (bsc#1245636)\n- Fix boot hangs in setting up serial console when ACPI SPCR table is present\n  and redirection is disabled (bsc#1249088)\n- Fix timeout when loading initrd via http after PPC CAS reboot (bsc#1245953)\n- Skip mount point in grub_find_device function (bsc#1246231)\n\n- CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grub_crypto_memcmp (bsc#1234959)","dates":{"published":"2025-12-15T12:49:56.000Z","modified":"2026-03-23T04:51:16.297Z","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 16.0","name":"grub2","label":"grub2&distro=SUSE Linux Enterprise 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2.12-160000.3.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202521212-1/","label":"www.suse.com/support/update/announcement/2025/suse-su-202521212-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1234959","label":"bugzilla.suse.com/1234959","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1245636","label":"bugzilla.suse.com/1245636","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1245738","label":"bugzilla.suse.com/1245738","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1245953","label":"bugzilla.suse.com/1245953","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1246231","label":"bugzilla.suse.com/1246231","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1247242","label":"bugzilla.suse.com/1247242","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1249088","label":"bugzilla.suse.com/1249088","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1249385","label":"bugzilla.suse.com/1249385","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252930","label":"bugzilla.suse.com/1252930","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252931","label":"bugzilla.suse.com/1252931","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252932","label":"bugzilla.suse.com/1252932","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252933","label":"bugzilla.suse.com/1252933","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252934","label":"bugzilla.suse.com/1252934","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1252935","label":"bugzilla.suse.com/1252935","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2024-56738","label":"www.suse.com/security/cve/CVE-2024-56738","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-54770","label":"www.suse.com/security/cve/CVE-2025-54770","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-54771","label":"www.suse.com/security/cve/CVE-2025-54771","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-61661","label":"www.suse.com/security/cve/CVE-2025-61661","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-61662","label":"www.suse.com/security/cve/CVE-2025-61662","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-61663","label":"www.suse.com/security/cve/CVE-2025-61663","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2025-61664","label":"www.suse.com/security/cve/CVE-2025-61664","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2024-56738","CVE-2025-54770","CVE-2025-54771","CVE-2025-61661","CVE-2025-61662","CVE-2025-61663","CVE-2025-61664"],"downstream":[],"duplicates":[],"related":["CVE-2024-56738","CVE-2025-54770","CVE-2025-54771","CVE-2025-61661","CVE-2025-61662","CVE-2025-61663","CVE-2025-61664"]},"timeline":[{"kind":"published","date":"2025-12-15T12:49:56.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-23T04:51:16.297Z","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":"2026-10-19T11:35:32.111Z","stale":false,"partial":false}}