CVE-2021-20320

Updated on 18 Feb 2022

Severity

5.5 Medium severity

Details

CVSS score
5.5
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Overview

About vulnerability

A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.

Details

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Debian 10 Will Not Fix
Debian 11 Will Not Fix
Proofpoint Ready For Release
Ubuntu 16.04 Will Not Fix
Ubuntu 16.04 AWS ESM Will Not Fix
Ubuntu 16.04 AWS HWE ESM Will Not Fix
Ubuntu 16.04 Azure ESM Will Not Fix
Ubuntu 16.04 GCP ESM Will Not Fix
Ubuntu 16.04 HWE ESM Will Not Fix
Ubuntu 18.04 Will Not Fix
Ubuntu 18.04 HWE Focal Will Not Fix
Ubuntu 20.04 Will Not Fix
Ubuntu 20.04 AWS Will Not Fix