Medium severity · published Sep 3, 2020
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…
5.5
CVSS
0.4%
EPSS
No
On KEV
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().
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
through 7.0 · source: NVD
MI
Midnightbsd · Midnightbsd
before 1.2.6; 1.3 through 2020-08-19 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-24385
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-24385
Vendor Advisory
http://www.midnightbsd.org/security/adv/MIDNIGHTBSD-SA-20:02.txt
Release Notes
https://www.midnightbsd.org/notes/
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