What is CVE-2020-24385?

CVE-2020-24385 is a medium-severity vulnerability in Freebsd, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2020-09-03.

How severe is CVE-2020-24385?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2020-24385 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Freebsd

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().

EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Freebsd
Midnightbsd
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

404notf0und/CVE-Flow

References

cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-24385?: CVE-2020-24385 is a medium-severity vulnerability in Freebsd, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2020-09-03.
How severe is CVE-2020-24385?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-24385 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.