CVE-2020-24385
Last modified
CVE-2020-24385 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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 estimates a 0.37% chance of exploitation in the next 30 days.
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().
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Midnightbsd | Midnightbsd | < 1.2.6 |
| Midnightbsd | Midnightbsd | >= 1.3, <= 2020-08-19 |
| Freebsd | Freebsd | <= 7.0 |
References
- https://www.midnightbsd.org/notes/Release Notes, Vendor Advisory
- https://www.midnightbsd.org/notes/Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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