VDB-251828 · CVE-2023-51043 · Nessus 239841

Linux Kernel up to 6.4.4/6.5-rc2 drm_atomic.c drm_atomic_state_init use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.4.4/6.5-rc2. Impacted is the function drm_atomic_state_init of the file drivers/gpu/drm/drm_atomic.c. Such manipulation leads to use after free. This vulnerability is listed as CVE-2023-51043. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.4.4/6.5-rc2 (Operating System). It has been rated as critical. Affected by this issue is the function drm_atomic_state_init of the file drivers/gpu/drm/drm_atomic.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown. CVE summarizes:

In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race condition between a nonblocking atomic commit and a driver unload.

The weakness was presented 01/23/2024 as 4e076c73e4f6e90816b30fcd4a0d7ab365087255. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-51043 since 12/18/2023. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 239841 (TencentOS Server 4: kernel (TSSA-2024:0960)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.4.5 or 6.5-rc3 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch 4e076c73e4f6e90816b30fcd4a0d7ab365087255 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 vulnerability database at Tenable (239841). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CNA Base Score: 7.0
CNA Vector: 🔍

CVSSv2info

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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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 239841
Nessus Name: TencentOS Server 4: kernel (TSSA-2024:0960)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.4.5/6.5-rc3
Patch: 4e076c73e4f6e90816b30fcd4a0d7ab365087255

Timelineinfo

12/18/2023 🔍
01/23/2024 +36 days 🔍
01/23/2024 +0 days 🔍
06/20/2025 +514 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 4e076c73e4f6e90816b30fcd4a0d7ab365087255
Status: Confirmed

CVE: CVE-2023-51043 (🔍)
GCVE (CVE): GCVE-0-2023-51043
GCVE (VulDB): GCVE-100-251828

Entryinfo

Created: 01/23/2024 15:03
Updated: 06/20/2025 02:40
Changes: 01/23/2024 15:03 (46), 02/17/2024 07:32 (11), 08/30/2024 01:37 (27), 06/20/2025 02:40 (2)
Complete: 🔍
Cache ID: 216::103