Linux Kernel up to 6.5-rc6 QXL qxl_dumb.c qxl_mode_dumb_create use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.5-rc6. The affected element is the function qxl_mode_dumb_create of the file drivers/gpu/drm/qxl/qxl_dumb.c of the component QXL. This manipulation causes use after free. The identification of this vulnerability is CVE-2023-39198. The attack can only be executed locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.5-rc6 (Operating System). It has been declared as critical. Affected by this vulnerability is the function qxl_mode_dumb_create of the file drivers/gpu/drm/qxl/qxl_dumb.c of the component QXL. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 11/08/2023. The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2023-39198 since 07/25/2023. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/12/2025).

Upgrading to version 6.5-rc7 eliminates this vulnerability. Applying the patch c611589b4259ed63b9b77be6872b1ce07ec0ac16 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-42932) and CERT Bund (WID-SEC-2023-2864). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • EMC Avamar
  • IBM QRadar SIEM
  • Open Source Linux Kernel
  • IBM Security Guardium
  • Dell NetWorker
  • Dell ECS
  • IBM Spectrum Protect Plus

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.5-rc7
Patch: c611589b4259ed63b9b77be6872b1ce07ec0ac16

Timelineinfo

07/25/2023 🔍
11/08/2023 +106 days 🔍
11/08/2023 +0 days 🔍
11/12/2025 +735 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2023-39198 (🔍)
GCVE (CVE): GCVE-0-2023-39198
GCVE (VulDB): GCVE-100-244789
EUVD: 🔍
CERT Bund: WID-SEC-2023-2864 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 11/08/2023 15:33
Updated: 11/12/2025 08:36
Changes: 11/08/2023 15:33 (44), 12/05/2023 10:02 (21), 06/26/2024 01:39 (15), 07/24/2025 02:37 (2), 11/12/2025 08:36 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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