CVE-2019-20421

Publication date 27 January 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
exiv2	19.10 eoan	Fixed 0.25-4ubuntu2.2
	18.04 LTS bionic	Fixed 0.25-3.1ubuntu0.18.04.5
	16.04 LTS xenial	Fixed 0.25-2.1ubuntu16.04.6
	14.04 LTS trusty	Not in release

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-4270-1
Exiv2 vulnerability
5 February 2020