UBUNTU-CVE-2017-18270

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2017-18270
Downstream
USN-3754-1
Published: 18 May 2018, 00:00
Last modified:22 Apr 2026, 11:21

Vulnerability Summary

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

Timeline

18 May 2018, 00:00
Published
Vulnerability first disclosed
22 Apr 2026, 11:21
Last Modified
Vulnerability information updated

Description

In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

CVSS Metrics

  • v3.0•HIGH•Score: 7.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Systems

  • ubuntu•linux

    < 3.13.0-157.207 | < 4.4.0-98.121

  • ubuntu•linux-aws

    < 4.4.0-1039.48

  • ubuntu•linux-azure

    < 4.13.0-1005.7

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-gcp

    < 4.13.0-1002.5

  • ubuntu•linux-gke

    all

  • ubuntu•linux-hwe

    < 4.13.0-32.35~16.04.1

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1009.14

  • ubuntu•linux-lts-xenial

    < 4.4.0-98.121~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1076.84 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1078.83

References (6)