CVE Vulnerability

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 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.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/MidnightBSD/src/blob/1691c07ff4f27b97220a5d65e217341e477f4014/sys/kern/vfs_syscalls.c Exploit Third Party Advisory
https://www.midnightbsd.org/notes/ Release Notes Vendor Advisory
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:01.txt Exploit Vendor Advisory
https://www.freebsd.org/security/advisories/FreeBSD-EN-20:18.getfsstat.asc Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*
cpe:2.3:a:midnightbsd:midnightbsd:*:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
Information

Published : 2020-09-03 03:15

Updated : 2020-09-11 02:03

NVD link : CVE-2020-24863

Mitre link : CVE-2020-24863

Products Affected
No products.
CWE
CWE-787