CVE-2019-1000020

Publication date 4 February 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libarchive	18.10 cosmic	Fixed 3.2.2-5ubuntu0.2
	18.04 LTS bionic	Fixed 3.2.2-3.1ubuntu0.3
	16.04 LTS xenial	Fixed 3.1.2-11ubuntu0.16.04.6
	14.04 LTS trusty	Fixed 3.1.2-7ubuntu2.8

Patch details

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

Package	Patch details
libarchive	Upstream: 8312eaa

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3884-1
libarchive vulnerabilities
7 February 2019