CVE-2018-6557
7.0 · HIGHOverview
CVE-2018-6557 is a high-severity vulnerability affecting base-files_project base-files. It was published on August 21, 2018 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from base-files_project. Update base-files to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2018-6557?
CVE-2018-6557 is a high-severity vulnerability affecting base-files_project base-files. It was published on August 21, 2018 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2018-6557?
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-6557?
Check the references section for vendor advisories and patches from base-files_project. Update base-files to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-6557?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-6557 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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