CVE-2025-43903

Publication date 18 April 2025

Last updated 3 July 2025

Ubuntu priority

Cvss 3 Severity Score

Description

NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
poppler	25.04 plucky	Fixed 25.03.0-3ubuntu1
	24.10 oracular	Fixed 24.08.0-1ubuntu0.3
	24.04 LTS noble	Fixed 24.02.0-1ubuntu9.4
	22.04 LTS jammy	Fixed 22.02.0-2ubuntu0.8
	20.04 LTS focal	Fixed 0.86.1-0ubuntu1.7
	18.04 LTS bionic	Fixed 0.62.0-2ubuntu2.14+esm6
	16.04 LTS xenial	Not affected

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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: f1b9c83

Severity score breakdown

Parameter	Value
Base score	4.3 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N