CVE-2021-46790

Publication date 2 May 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

ntfsck in NTFS-3G through 2021.8.22 has a heap-based buffer overflow involving buffer+512*3-2. NOTE: the upstream position is that ntfsck is deprecated; however, it is shipped by some Linux distributions.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ntfs-3g	22.04 LTS jammy	Fixed 1:2021.8.22-3ubuntu1.1
	21.10 impish	Fixed 1:2017.3.23AR.3-3ubuntu5.1
	20.04 LTS focal	Fixed 1:2017.3.23AR.3-3ubuntu1.2
	18.04 LTS bionic	Fixed 1:2017.3.23-2ubuntu0.18.04.4
	16.04 LTS xenial	Fixed 1:2015.3.14AR.1-1ubuntu0.3+esm2 Ubuntu Pro
	14.04 LTS trusty	Fixed 1:2013.1.13AR.1-2ubuntu2+esm2 Ubuntu Pro

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Notes

mdeslaur

The ntfsck tool is in the ntfs-3g-dev binary package, which isn't normally installed, and per upstream "ntfsck does nothing useful, it has been put into the quarantine section, and the distributions should not use it." Setting priority to low.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ntfs-3g	Upstream: 96412e2

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

References

Related Ubuntu Security Notices (USN)

USN-5452-1
NTFS-3G vulnerability
30 May 2022

USN-5463-1
NTFS-3G vulnerabilities
7 June 2022

Other references

https://www.cve.org/CVERecord?id=CVE-2021-46790