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CVE-2018-15469

6.5 · MEDIUM

An issue was discovered in Xen through 4.11.x.

Published Aug 17, 2018CWE-400EPSS 0.42%

Overview

CVE-2018-15469 is a medium-severity vulnerability. It was published on August 17, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).

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

Refxenbits.xen.org/xsa/advisory-268.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00013.htmlRefsecurity.gentoo.org/glsa/201810-06Refxenbits.xen.org/xsa/advisory-268.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00013.htmlRefsecurity.gentoo.org/glsa/201810-06

How CyberStrike helps

Frequently asked questions

What is CVE-2018-15469?

CVE-2018-15469 is a medium-severity vulnerability. It was published on August 17, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2018-15469?

This vulnerability has a CVSS 3.0 base score of 6.5, 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-2018-15469?

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-2018-15469?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-15469 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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