What is CVE-2022-0646?

CVE-2022-0646 is a high-severity vulnerability in Linux Kernel, classified under Incomplete Cleanup. CVSS score: 7.8/10. Published 2022-02-18.

How severe is CVE-2022-0646?

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

Use After Free in Linux Kernel

CVE-2022-0646

A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.

EPSS: 0.003 (26.8th 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

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2022-0646?: CVE-2022-0646 is a high-severity vulnerability in Linux Kernel, classified under Incomplete Cleanup. CVSS score: 7.8/10. Published 2022-02-18.
How severe is CVE-2022-0646?: High severity. CVSS v3 base score is 7.8 out of 10.