CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.1. It affects Linux.
CVE
CVE-2021-4001
Severity
MEDIUM
CVSS
4.1
EPSS
0.19%
Linux
Original NVD Description
A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.
Related CVEs
Other vulnerabilities affecting the same vendor(s)