CVE-2020-24385

MEDIUM EPSS 28.6%
Published Sep 3, 20205y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 3, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
28.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
midnightbsdmidnightbsd* <1.2.6
midnightbsdmidnightbsd*≥1.3  –  ≤2020-08-19
freebsdfreebsd* ≤7.0

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.