CVE-2020-23804

Publication date 22 August 2023

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Uncontrolled Recursion in pdfinfo, and pdftops in poppler 0.89.0 allows remote attackers to cause a denial of service via crafted input.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
poppler	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Fixed 0.86.1-0ubuntu1.4
	18.04 LTS bionic	Fixed 0.62.0-2ubuntu2.14+esm2
	16.04 LTS xenial	Fixed 0.41.0-0ubuntu1.16+esm4
	14.04 LTS trusty	Ignored end of standard support

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Patch details

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

Package	Patch details
poppler	Upstream: ec8a43c

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H