Linux Kernel up to 6.2.7 Metadata fs/ntfs3/inode.c ntfs_read_mft MFT_REC_MFT use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

A vulnerability was found in Linux Kernel up to 6.2.7 (Operating System). It has been classified as critical. Affected is the function ntfs_read_mft of the file fs/ntfs3/inode.c of the component Metadata Handler. The manipulation of the argument MFT_REC_MFT with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel through 6.2.7, fs/ntfs3/inode.c has an invalid kfree because it does not validate MFT flags before replaying logs.

The weakness was released 03/19/2023. The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-48425 since 03/19/2023. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/11/2023).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

Productinfo

Type

Vendor

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

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
ATT&CK: Unknown

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: Patch
Status: 🔍

0-Day Time: 🔒

Patch: git.kernel.org

Timelineinfo

03/19/2023 Advisory disclosed
03/19/2023 +0 days CVE reserved
03/19/2023 +0 days VulDB entry created
04/11/2023 +23 days VulDB last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-48425 (🔒)

Entryinfo

Created: 03/19/2023 07:55 AM
Updated: 04/11/2023 10:04 PM
Changes: 03/19/2023 07:55 AM (44), 04/11/2023 10:04 PM (11)
Complete: 🔍

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