Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Midnightbsd | Midnightbsd | < 1.2.7 |
| Freebsd | Freebsd | <= 11.4 |
Related Weaknesses (CWE)
References
- http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txtExploitVendor Advisory
- https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014ExploitThird Party Advisory
- https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.ascPatchVendor Advisory
- https://www.midnightbsd.org/notes/Release NotesVendor Advisory
- http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txtExploitVendor Advisory
- https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014ExploitThird Party Advisory
- https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.ascPatchVendor Advisory
- https://www.midnightbsd.org/notes/Release NotesVendor Advisory
FAQ
What is CVE-2020-24863?
CVE-2020-24863 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 a...
How severe is CVE-2020-24863?
CVE-2020-24863 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-24863?
Check the references section above for vendor advisories and patch information. Affected products include: Midnightbsd Midnightbsd, Freebsd Freebsd.