{"id":"ALPINE-CVE-2020-25632","details":"A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","modified":"2025-12-03T22:47:10.748768Z","published":"2021-03-03T17:15:11.660Z","upstream":["CVE-2020-25632"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-25632"}],"affected":[{"package":{"name":"grub","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1","2.02_beta3-r2","2.02_beta3-r3","2.02_beta3-r4","2.02_beta3-r5","2.02_beta3-r6","2.02_beta3-r7","2.04-r0","2.04-r1","2.04-r2","2.04-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-25632.json"}},{"package":{"name":"grub","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/grub?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-r0"}]}],"versions":["2.02-r0","2.02-r1","2.02-r10","2.02-r11","2.02-r12","2.02-r13","2.02-r14","2.02-r15","2.02-r16","2.02-r17","2.02-r18","2.02-r19","2.02-r2","2.02-r20","2.02-r3","2.02-r4","2.02-r5","2.02-r6","2.02-r7","2.02-r8","2.02-r9","2.02_beta3-r0","2.02_beta3-r1"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