==========================================================================
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