CVE-2021-4218

Published Aug 24, 2022

Last updated a year ago

CVSS medium 5.5

Overview

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.
Source: secalert@redhat.com
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 5.5
Impact score: 3.6
Exploitability score: 1.8
Vector string: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: MEDIUM

Weaknesses

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

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References