Tuxera ntfs-3g prior 2021.8.22 NTFS Image ntfs_attr_find_in_attrdef out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Tuxera ntfs-3g. Affected is the function ntfs_attr_find_in_attrdef of the component NTFS Image Handler. The manipulation results in out-of-bounds. This vulnerability was named CVE-2021-39255. An attack on the physical device is feasible. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Tuxera ntfs-3g. It has been classified as problematic. Affected is the function ntfs_attr_find_in_attrdef of the component NTFS Image Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality.

The weakness was presented 09/08/2021. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-39255. There are known technical details, but no exploit is available.

Upgrading to version 2021.8.22 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2021-25617). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 2.1
VulDB Temp Score: 2.0
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ntfs-3g 2021.8.22

Timelineinfo

08/17/2021 🔍
09/08/2021 +22 days 🔍
09/08/2021 +0 days 🔍
12/02/2025 +1546 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-39255 (🔍)
GCVE (CVE): GCVE-0-2021-39255
GCVE (VulDB): GCVE-100-182148
EUVD: 🔍

Entryinfo

Created: 09/08/2021 08:14
Updated: 12/02/2025 23:27
Changes: 09/08/2021 08:14 (58), 09/10/2021 14:39 (2), 12/02/2025 23:10 (15), 12/02/2025 23:27 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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