Linux Kernel vmwgfx 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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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as critical. The affected element is an unknown function of the component vmwgfx. Executing a manipulation can lead to use after free. This vulnerability is tracked as CVE-2023-5633. The attack is restricted to local execution. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel (Operating System) (version now known). This vulnerability affects some unknown processing of the component vmwgfx. 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 disclosed 10/23/2023. The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2023-5633 since 10/18/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/16/2025).

Applying the patch 91398b413d03660fd5828f7b4abc64e884b98069 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-57926). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 91398b413d03660fd5828f7b4abc64e884b98069

Timelineinfo

10/18/2023 🔍
10/23/2023 +5 days 🔍
10/23/2023 +0 days 🔍
12/16/2025 +785 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2023-5633 (🔍)
GCVE (CVE): GCVE-0-2023-5633
GCVE (VulDB): GCVE-100-243172
EUVD: 🔍

Entryinfo

Created: 10/23/2023 16:57
Updated: 12/16/2025 19:40
Changes: 10/23/2023 16:57 (40), 11/12/2023 18:51 (1), 11/12/2023 18:58 (12), 07/24/2024 18:49 (27), 12/16/2025 19:40 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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