CVE-2018-6557 Insecure temporary file use in base-files
HighCVSS 7.0
EPSS 0.37%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| base-files project base-files | = 10.1ubuntu2.2 | No fix listed |
| Canonical Ubuntu Linux | = 18.04 | No fix listed |
| Canonical Ubuntu Linux | = 18.10 | No fix listed |
| ubuntu base-files | < 10.1ubuntu2.2 | 10.1ubuntu2.2 |
References
- 105148 third-party-advisory vdb-entry
- 1041530 broken-link third-party-advisory vdb-entry
- USN-3748-1 vendor-advisory
- Debian Security Tracker CVE-2018-6557 vendor-advisory