Find real vulnerabilities before they ship
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.
Base Score
4.1
| Base Score | 4.1 |
|---|---|
| Vector String | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N |
| Base Severity | Medium |
| Version | 3.1 |
| Attack Vector (AV) | LOCAL |
