Vulnerability CVE-2020-24385


Published: 2020-09-03

Description:
In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td->td_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().

Type:

CWE-476

(NULL Pointer Dereference)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Midnightbsd -> Midnightbsd 
Freebsd -> Freebsd 

 References:
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt
https://www.midnightbsd.org/notes/

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