CVE-2023-52168

Publication date 3 July 2024

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains a heap-based buffer overflow that allows an attacker to overwrite two bytes at multiple offsets beyond the allocated buffer size: buffer+512*i-2, for i=9, i=10, i=11, etc.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
7zip	26.04 LTS resolute	Not affected
	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Fixed 23.01+dfsg-11ubuntu0.1~esm1
	23.10 mantic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 21.07+dfsg-4ubuntu0.1~esm1
	20.04 LTS focal	Not in release

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Notes

john-breton

Sourceforge is private for the 7-Zip project, but the linked disclosure blog includes the patched code.

Patch details

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

Package	Patch details
7zip	Third-party: https://dfir.ru/2024/06/19/vulnerabilities-in-7-zip-and-ntfs3/

Severity score breakdown

Parameter	Value
Base score	8.4 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-7438-1
7-Zip vulnerabilities
15 April 2025