CVE-2021-39258

Publication date 7 September 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ntfs-3g	22.04 LTS jammy	Fixed 1:2017.3.23AR.3-3ubuntu5
	21.10 impish	Fixed 1:2017.3.23AR.3-3ubuntu5
	21.04 hirsute	Fixed 1:2017.3.23AR.3-3ubuntu4.1
	20.04 LTS focal	Fixed 1:2017.3.23AR.3-3ubuntu1.1
	18.04 LTS bionic	Fixed 1:2017.3.23-2ubuntu0.18.04.3
	16.04 LTS xenial	Fixed 1:2015.3.14AR.1-1ubuntu0.3+esm1
	14.04 LTS trusty	Fixed 1:2013.1.13AR.1-2ubuntu2+esm1

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Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H