Linux Kernel up to 6.7.1 Display clk_mgr null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.7.1. It has been classified as problematic. This impacts the function clk_mgr of the component Display Handler. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2023-52460. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 6.7.1 (Operating System). This affects the function clk_mgr of the component Display Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference at hibernate During hibernate sequence the source context might not have a clk_mgr. So don't use it to look for DML2 support.

The weakness was disclosed 02/23/2024. The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-52460 since 02/20/2024. Technical details are known, but no exploit is available.

Upgrading to version 6.7.2 or 6.8-rc1 eliminates this vulnerability. Applying the patch 6b80326efff0/b719a9c15d52 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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 6.7.2/6.8-rc1
Patch: 6b80326efff0/b719a9c15d52

Timelineinfo

02/20/2024 🔍
02/23/2024 +3 days 🔍
02/23/2024 +0 days 🔍
02/23/2024 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-52460 (🔍)
GCVE (CVE): GCVE-0-2023-52460
GCVE (VulDB): GCVE-100-254637

Entryinfo

Created: 02/23/2024 16:20
Changes: 02/23/2024 16:20 (44)
Complete: 🔍
Cache ID: 216::103

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