CVE-2020-36557

Published Jul 21, 2022

Last updated 2 years ago

CVSS medium 5.1

Overview

Description: A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free.
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 5.1
Impact score: 3.6
Exploitability score: 1.4
Vector string: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: MEDIUM

Weaknesses

nvd@nist.gov: CWE-362

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "6F179BDD-09A1-4848-A42D-AE269989FA99",
            "versionEndExcluding": "5.6.2"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References