What is CVE-2022-0264?

CVE-2022-0264 is a medium-severity vulnerability in Linux Kernel, classified under Improper Handling of Exceptional Conditions. CVSS score: 5.5/10. Published 2022-02-04.

How severe is CVE-2022-0264?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2022-0264 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux Kernel

CVE-2022-0264

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6

EPSS: 0.003 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Linux Linux_kernel — versions 5.16
N/a Kernel — versions kernel v5.16-rc6

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

secalert@redhat.com (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-0264?: CVE-2022-0264 is a medium-severity vulnerability in Linux Kernel, classified under Improper Handling of Exceptional Conditions. CVSS score: 5.5/10. Published 2022-02-04.
How severe is CVE-2022-0264?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-0264 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.