What is CVE-2023-39198?

CVE-2023-39198 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.4 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2023-39198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-39198?

CVE-2023-39198 has a CVSS score of 6.4 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-39198?

No patch is currently available for CVE-2023-39198. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-39198 actively exploited?

CVE-2023-39198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2023-39198

Medium

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.

Package Linux Kernel

Published 2023-11-09

Last modified 2026-03-24

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.4

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-416

CVE-2023-39198 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-39198 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2024:2394
Red Hat
https://access.redhat.com/errata/RHSA-2024:2950
Red Hat
https://access.redhat.com/errata/RHSA-2024:3138
Red Hat
https://access.redhat.com/security/cve/CVE-2023-39198

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2218332
Patch

Details

CVE ID CVE-2023-39198

Severity Medium

CVSS score 6.4 / 10

CVSS version 3.1

Published 2023-11-09

Modified 2026-03-24

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-39198?

CVE-2023-39198 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.4 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2023-39198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-39198?

CVE-2023-39198 has a CVSS score of 6.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-39198?

No patch is currently available for CVE-2023-39198. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-39198 actively exploited?

No — CVE-2023-39198 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →