CVEvulnerability
CVE-2020-24385
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-09-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-476
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().
Affected configurations
• midnightbsd midnightbsd (< 1.2.6)
• midnightbsd midnightbsd (>= 1.3 <= 2020-08-19)
• freebsd freebsd (<= 7.0)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- 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