What is CVE-2022-3977?

CVE-2022-3977 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-01-12.

How severe is CVE-2022-3977?

High severity. CVSS v3 base score is 7.8 out of 10.

Use After Free in Linux Kernel

CVE-2022-3977

A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.

Vulnerability class: Use-After-Free

EPSS: 0.003 (16.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux Linux_kernel
N/a Kernel — versions Linux kernel 6.1-rc1

Weakness classification (CWE)

CWE-416 — Use After Free

References

secalert@redhat.com (Patch, Mailing List, Vendor Advisory)
secalert@redhat.com (Third Party Advisory)

Frequently asked questions

What is CVE-2022-3977?: CVE-2022-3977 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-01-12.
How severe is CVE-2022-3977?: High severity. CVSS v3 base score is 7.8 out of 10.