Vulnerability Database

318,275

Total vulnerabilities in the database

CVE-2018-6557

The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.

  • Published: Aug 21, 2018
  • Updated: Nov 9, 2025
  • CVE: CVE-2018-6557
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7
  • AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.4
  • AV:L/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
canonical / ubuntu_linux 18.04 18.04.x
canonical / ubuntu_linux 18.10 18.10.x
base-files_project / base-files 10.1ubuntu2.2 10.1ubuntu2.2.x