CVE-2020-24385

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().

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt	Vendor Advisory
https://www.midnightbsd.org/notes/	Release Notes Vendor Advisory
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt	Vendor Advisory
https://www.midnightbsd.org/notes/	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:midnightbsd:midnightbsd::::::::
	cpe:2.3:a:midnightbsd:midnightbsd::::::::

Configuration 2 (hide)

cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:14

Type	Values Removed	Values Added
References	~~() http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt - Vendor Advisory~~	() http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt - Vendor Advisory
References	~~() https://www.midnightbsd.org/notes/ - Release Notes, Vendor Advisory~~	() https://www.midnightbsd.org/notes/ - Release Notes, Vendor Advisory

Information

Published : 2020-09-03 15:15

Updated : 2024-11-21 05:14

NVD link : CVE-2020-24385

Mitre link : CVE-2020-24385

CVE.ORG link : CVE-2020-24385

JSON object : View

Products Affected

midnightbsd

midnightbsd

freebsd

freebsd

CWE

CWE-476

NULL Pointer Dereference

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