CVE-2025-5915

Publication date 9 June 2025

Last updated 6 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libarchive	25.10 questing	Fixed 3.7.7-0ubuntu3
	25.04 plucky	Fixed 3.7.7-0ubuntu2.3
	24.10 oracular	Fixed 3.7.4-1ubuntu0.3
	24.04 LTS noble	Fixed 3.7.2-2ubuntu0.5
	22.04 LTS jammy	Fixed 3.6.0-1ubuntu1.5
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Patch details

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

Package	Patch details
libarchive	Upstream: a612bf6

Severity score breakdown

Parameter	Value
Base score	6.6 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-7601-1
libarchive vulnerabilities
26 June 2025