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CVE-2018-6557

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-3748-1
Posted Aug 21, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3748-1 - Sander Bos discovered that the MOTD update script 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.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-6557
MD5 | 705b2db9589f98666a78c74f28f951fd
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