high7.0
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 fi…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Base-Files Project | Base-Files | Version 10.1ubuntu2.2 |
| Canonical | Ubuntu Linux | Versions 18.04, 18.10 |