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CVE-2018-18398

4.7 · MEDIUM

Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV.

Published Oct 19, 2018CWE-125EPSS 0.32%

Overview

CVE-2018-18398 is a medium-severity vulnerability. It was published on October 19, 2018 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV. This could potentially be exploited by an arbitrary local user who creates files in /tmp before the victim uses this input method.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Ref0xd0ff9.wordpress.com/2018/10/18/cve-2018-18398/Ref0xd0ff9.wordpress.com/2018/10/18/cve-2018-18398/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-18398?

CVE-2018-18398 is a medium-severity vulnerability. It was published on October 19, 2018 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

How severe is CVE-2018-18398?

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-18398?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2018-18398?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-18398 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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