{"id":"CVE-2020-24863","details":"A memory corruption vulnerability was found in the kernel function kern_getfsstat in MidnightBSD before 1.2.7 and 1.3 through 2020-08-19, and FreeBSD through 11.4, that allows an attacker to trigger an invalid free and crash the system via a crafted size value in conjunction with an invalid mode.","modified":"2026-03-14T10:22:57.988824Z","published":"2020-09-03T15:15:11.520Z","references":[{"type":"ADVISORY","url":"https://www.midnightbsd.org/notes/"},{"type":"FIX","url":"https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc"},{"type":"EVIDENCE","url":"http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt"},{"type":"EVIDENCE","url":"https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/midnightbsd/src","events":[{"introduced":"0"},{"fixed":"7d51d952d825a85bb44e88a43af9447143b8138e"},{"introduced":"0"},{"last_affected":"a344d02bf3aef5d00d8b41eb9c8a0cb1ca4a1a9c"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.2.7"},{"introduced":"0"},{"last_affected":"11.4"}]}}],"versions":["vendor/FreeBSD/dist/10.0","vendor/FreeBSD/dist/11.4","vendor/FreeBSD/dist/6.1","vendor/FreeBSD/dist/7.0","vendor/FreeBSD/dist/9.1","vendor/FreeBSD/dist/9.r249649"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"1.3"},{"last_affected":"2020-08-19"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24863.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}