UBUNTU-CVE-2018-25020

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2018-25020
Downstream
LSN-0083-1
Published: 08 Dec 2021, 05:15
Last modified:03 Jun 2026, 13:33

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

08 Dec 2021, 05:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated

Description

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.

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

    < 4.15.0-166.174

  • ubuntu•linux-aws

    < 4.15.0-1118.125

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2059.61 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1118.125~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1129.142~14.04.1 | < 4.15.0-1129.142~16.04.1 | all

  • ubuntu•linux-azure-4.15

    < 4.15.0-1129.142

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2041.45 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-dell300x

    < 4.15.0-1033.38

  • ubuntu•linux-fips

    < 4.15.0-1075.84 | all

  • ubuntu•linux-gcp

    < 4.15.0-1114.128~16.04.1 | all

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1114.128

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2024.26 | all

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-hwe

    < 4.15.0-166.174~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.15.0-1105.107

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1085.93~16.04.1 | < 4.15.0-1085.93

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.8

    all

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1101.108 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.8

    all

  • ubuntu•linux-snapdragon

    < 4.15.0-1118.127

References (4)