CVE-2025-60753

Publication date 5 November 2025

Last updated 6 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/subst.c when processing crafted -s substitution rules. This can cause unbounded memory allocation and lead to denial of service (Out-of-Memory crash).

Read the notes from the security team

Why is this CVE negligible priority?

Memory consumption issue in a command line tool via incorrect options

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libarchive	25.10 questing	Fixed 3.7.7-0ubuntu3.1
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 3.7.2-2ubuntu0.6
	22.04 LTS jammy	Fixed 3.6.0-1ubuntu1.6
	20.04 LTS focal	Fixed 3.4.0-2ubuntu1.5+esm1
	18.04 LTS bionic	Fixed 3.2.2-3.1ubuntu0.7+esm2
	16.04 LTS xenial	Fixed 3.1.2-11ubuntu0.16.04.8+esm2
	14.04 LTS trusty	Fixed 3.1.2-7ubuntu2.8+esm4

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro 30-day free trial

Notes

mdeslaur

This requires the user to pass crafted substitution rules on the command line. An attacker like this is unlikely.

Patch details

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

Package	Patch details
libarchive	Upstream: 81bc00a

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-8147-1
libarchive vulnerabilities
2 April 2026