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Ubuntu: USN-3748-1 (CVE-2018-6557): base-files vulnerability

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Ubuntu: USN-3748-1 (CVE-2018-6557): base-files vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/21/2018
Created
03/19/2019
Added
08/28/2018
Modified
05/03/2019

Description

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.

Solution(s)

  • ubuntu-upgrade-base-files

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