What is CVE-2020-15437?

CVE-2020-15437 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 4.4/10. Published 2020-11-23.

How severe is CVE-2020-15437?

Medium severity. CVSS v3 base score is 4.4 out of 10.

NULL pointer dereference in Linux Kernel

CVE-2020-15437

The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.

EPSS: 0.004 (35.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux Linux_kernel
N/a Linux Kernel — versions 5.7 (verified), possibly others 4.18

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

securities@openeuler.org (Exploit, Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-15437?: CVE-2020-15437 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 4.4/10. Published 2020-11-23.
How severe is CVE-2020-15437?: Medium severity. CVSS v3 base score is 4.4 out of 10.