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CVE-2023-39198

7.5 · HIGH

A race condition was found in the QXL driver in the Linux kernel.

Published Nov 9, 2023CWE-416EPSS 0.42%

Overview

CVE-2023-39198 is a high-severity vulnerability. It was published on November 9, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

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

Refaccess.redhat.com/errata/RHSA-2024:2394Refaccess.redhat.com/errata/RHSA-2024:2950Refaccess.redhat.com/errata/RHSA-2024:3138Refaccess.redhat.com/security/cve/CVE-2023-39198Refbugzilla.redhat.com/show_bug.cgi?id=2218332Refaccess.redhat.com/errata/RHSA-2024:2394Refaccess.redhat.com/errata/RHSA-2024:2950Refaccess.redhat.com/errata/RHSA-2024:3138Refaccess.redhat.com/security/cve/CVE-2023-39198Refbugzilla.redhat.com/show_bug.cgi?id=2218332

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39198?

CVE-2023-39198 is a high-severity vulnerability. It was published on November 9, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-39198?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2023-39198?

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-2023-39198?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39198 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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