Buffer overflow in Linux Kernel

CVE-2022-2991

A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (33.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-2991?
CVE-2022-2991 is a medium-severity vulnerability in Linux Kernel, classified under Heap-based Buffer Overflow. CVSS score: 6.7/10. Published 2022-08-25.
How severe is CVE-2022-2991?
Medium severity. CVSS v3 base score is 6.7 out of 10.