UBUNTU-CVE-2022-24122

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2022-24122
Downstream
USN-5278-1
Published: 29 Jan 2022, 22:15
Last modified:04 Feb 2026, 04:20

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 Jan 2022, 22:15
Published
Vulnerability first disclosed
04 Feb 2026, 04:20
Last Modified
Vulnerability information updated

Description

kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-azure

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-gcp

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.14

    < 5.14.0-1022.24

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.8

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.8

    all

References (7)