5.5

CVE-2020-24385: freebsd NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
Published 03-09-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-24385 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in freebsd. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.37%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-09-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

0.00 pp

From 0.37% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Freebsd1 product
Midnightbsd1 product

2 vendors · 2 products

References

2 links