VDB-182105 · CVE-2021-33285 · Nessus 299967

Tuxera ntfs-3g prior 2021.8.22 NTFS Attribute ntfs_get_attribute_value heap-based overflow

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Tuxera ntfs-3g. It has been rated as critical. Affected by this vulnerability is the function ntfs_get_attribute_value of the component NTFS Attribute Handler. The manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2021-33285. It is possible to launch the attack on the physical device. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Tuxera ntfs-3g. It has been rated as problematic. This issue affects the function ntfs_get_attribute_value of the component NTFS Attribute Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was published 09/07/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-33285. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 299967 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50118)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2021.8.22 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (299967). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Tuxera

Name

ntfs-3g

License

open-source

Website

Product: https://github.com/tuxera/ntfs-3g/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 299967
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50118)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ntfs-3g 2021.8.22

Timelineinfo

05/20/2021 🔍
09/07/2021 +110 days 🔍
09/07/2021 +0 days 🔍
03/01/2026 +1636 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-33285 (🔍)
GCVE (CVE): GCVE-0-2021-33285
GCVE (VulDB): GCVE-100-182105

Entryinfo

Created: 09/07/2021 20:23
Updated: 03/01/2026 07:07
Changes: 09/07/2021 20:23 (38), 09/10/2021 09:29 (2), 12/03/2025 17:08 (33), 03/01/2026 07:07 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.