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From: Fabian Toepfer <fabian.toepfer@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <3155f9e9-7935-4cef-9405-7ec452526fb3@canonical.com>
Subject: [USN-7471-1] poppler vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7471-1
April 29, 2025

poppler vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

poppler could be made to treat documents with forged signatures as
legitimately signed.

Software Description:
- poppler: PDF rendering library

Details:

It was discovered that poppler did not properly verify adbe.pkcs7.sha1
signatures in PDF documents. An attacker could possibly use this issue
to create documents with forged signatures that are treated as
legitimately signed.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.04
   libpoppler147                   25.03.0-3ubuntu1
   poppler-utils                   25.03.0-3ubuntu1

Ubuntu 24.10
   libpoppler140                   24.08.0-1ubuntu0.3
   poppler-utils                   24.08.0-1ubuntu0.3

Ubuntu 24.04 LTS
   libpoppler134                   24.02.0-1ubuntu9.4
   poppler-utils                   24.02.0-1ubuntu9.4

Ubuntu 22.04 LTS
   libpoppler118                   22.02.0-2ubuntu0.8
   poppler-utils                   22.02.0-2ubuntu0.8

Ubuntu 20.04 LTS
   libpoppler97                    0.86.1-0ubuntu1.7
   poppler-utils                   0.86.1-0ubuntu1.7

Ubuntu 18.04 LTS
   libpoppler73                    0.62.0-2ubuntu2.14+esm6
                                   Available with Ubuntu Pro
   poppler-utils                   0.62.0-2ubuntu2.14+esm6
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-7471-1
   CVE-2025-43903

Package Information:
   https://launchpad.net/ubuntu/+source/poppler/25.03.0-3ubuntu1
   https://launchpad.net/ubuntu/+source/poppler/24.08.0-1ubuntu0.3
   https://launchpad.net/ubuntu/+source/poppler/24.02.0-1ubuntu9.4
   https://launchpad.net/ubuntu/+source/poppler/22.02.0-2ubuntu0.8
   https://launchpad.net/ubuntu/+source/poppler/0.86.1-0ubuntu1.7

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