UBUNTU-CVE-2021-4204

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2021-4204
Published: 11 Jan 2022, 00:00
Last modified:04 Feb 2026, 03:24

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 Jan 2022, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 03:24
Last Modified
Vulnerability information updated

Description

An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected Systems

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1025.27~20.04.1

  • ubuntu•linux-aws-5.13

    < 5.13.0-1011.12~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-azure

    all

  • ubuntu•linux-azure-5.11

    < 5.11.0-1025.27~20.04.1

  • ubuntu•linux-azure-5.13

    < 5.13.0-1012.14~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-gcp

    all

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1026.29~20.04.1

  • ubuntu•linux-gcp-5.13

    < 5.13.0-1012.15~20.04.1

  • 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

    < 5.11.0-46.51~20.04.1

  • ubuntu•linux-hwe-5.13

    < 5.13.0-25.26~20.04.1

  • 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-5.10

    < 5.10.0-1055.58

  • ubuntu•linux-oem-5.13

    < 5.13.0-1026.32

  • ubuntu•linux-oem-5.14

    < 5.14.0-1018.19

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.11

    < 5.11.0-1025.27~20.04.1

  • ubuntu•linux-oracle-5.13

    < 5.13.0-1015.19~20.04.1

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.8

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.11

    < 5.11.0-1026.28~20.04.1

  • ubuntu•linux-riscv-5.8

    all

References (6)