{"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":"2026-07-08T05:54:26.504921506Z","published":"2020-09-03T15:15:11.520Z","database_specific":{"unresolved_ranges":[{"vendor_product":"freebsd:freebsd","cpes":["cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"11.4"}],"source":"CPE_RANGE"},{"cpes":["cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.3"},{"last_affected":"2020-08-19"}],"source":"CPE_RANGE","vendor_product":"midnightbsd:midnightbsd"}]},"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"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.2.7"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*"}}],"versions":["1.2.6","1.2.5","1.2.4","1.2.3","1.2.2","1.2.1"],"database_specific":{"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"}]}