VDB-221812 · CVE-2023-26606 · Nessus 239841

Linux Kernel 6.0.8 fs/ntfs3/bitmap.c ntfs_trim_fs 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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel 6.0.8. This affects the function ntfs_trim_fs of the file fs/ntfs3/bitmap.c. Executing a manipulation can lead to use after free. This vulnerability is tracked as CVE-2023-26606. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in Linux Kernel 6.0.8 (Operating System). It has been declared as problematic. This vulnerability affects the function ntfs_trim_fs of the file fs/ntfs3/bitmap.c. 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. The impact remains unknown. CVE summarizes:

In the Linux kernel 6.0.8, there is a use-after-free in ntfs_trim_fs in fs/ntfs3/bitmap.c.

The weakness was disclosed 02/27/2023. The advisory is shared for download at lkml.org. This vulnerability was named CVE-2023-26606 since 02/26/2023. Technical details and also a public exploit are known.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

6.0.8

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: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/26/2023 🔍
02/27/2023 +1 days 🔍
02/27/2023 +0 days 🔍
06/20/2025 +844 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Status: Not defined

CVE: CVE-2023-26606 (🔍)
GCVE (CVE): GCVE-0-2023-26606
GCVE (VulDB): GCVE-100-221812
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/27/2023 08:16
Updated: 06/20/2025 04:19
Changes: 02/27/2023 08:16 (42), 03/25/2023 11:40 (11), 06/20/2025 04:19 (17)
Complete: 🔍
Cache ID: 216::103