CVE-2022-4269

Published Dec 5, 2022

Last updated a year ago

CVSS medium 5.5

Overview

Description: A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.
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

secalert@redhat.com: CWE-833

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:4.1:rc1:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "DD00F761-489D-40EF-A0E1-DA7EEB2EA2F8"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References