Vulnerability · Published Sep 3, 2020 · Assigned by mitre

CVE-2020-24863

Medium 5.5

In plain English

A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium

Exploit odds (30 days)0.5%top 54.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.midnightbsd.org/notes/ x_refsource_MISC
https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c x_refsource_MISC
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt x_refsource_CONFIRM
https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc x_refsource_CONFIRM