VULNERABILITY INTELLIGENCE

CVE-2021-4218

CVSS score5.5 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2022-08-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in the Linux kernel’s implementation of reading the SVC RDMA counters. Reading the counter sysctl panics the system. This flaw allows a local attacker with local access to cause a denial of service while the system reboots. The issue is specific to CentOS/RHEL.

Weakness classification

  • secalert@redhat.com: CWE-665
  • nvd@nist.gov: CWE-665

Primary references