CVE-2021-4159

Updated: 2023-03-10 12:28:07.061403

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x MEDIUM 4.4

Status

OS name Project name Version Score Severity Status Errata Last updated
CentOS 6 ELS kernel 2.6.32 4.4 MEDIUM Ignored 2022-08-30 08:02:14
CentOS 8.4 ELS kernel 4.18.0-305.25.1 4.4 MEDIUM Ignored 2022-08-30 08:02:14
CentOS 8.5 ELS kernel 4.18.0-348.7.1 4.4 MEDIUM Ignored 2022-08-30 08:02:14
CloudLinux 6 ELS kernel 2.6.32 4.4 MEDIUM Ignored 2022-08-30 08:02:14
Oracle Linux 6 ELS kernel 2.6.32 4.4 MEDIUM Ignored 2022-08-30 08:02:14
Ubuntu 16.04 ELS linux 4.4.0 4.4 MEDIUM Ignored 2023-01-30 10:05:54
Ubuntu 16.04 ELS linux-hwe 4.15.0 4.4 MEDIUM Released 2023-02-03 07:40:39
Ubuntu 18.04 ELS linux 4.15.0 4.4 MEDIUM Ignored 2023-03-02 04:04:00