medium5.5
CVE-2020-24863
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 1…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Midnightbsd | Midnightbsd | before 1.2.7 from 1.3 through 2020-08-19 |
| Freebsd | Freebsd | through 11.4 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt
- https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c
- https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc
- https://www.midnightbsd.org/notes/
- http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt
- https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c
- https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc
- https://www.midnightbsd.org/notes/