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Ubuntu Security Notice USN-7426-2
April 09, 2025

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

poppler could be made to crash if it opened a specially crafted PDF file.

Software Description:
- poppler: PDF rendering library

Details:

USN-7426-1 fixed several vulnerabilities in poppler. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

 It was discovered that poppler incorrectly handled memory when opening
 certain PDF files. An attacker could possibly use this issue to cause
 poppler to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS
  libpoppler73                    0.62.0-2ubuntu2.14+esm5
                                  Available with Ubuntu Pro
  poppler-utils                   0.62.0-2ubuntu2.14+esm5
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libpoppler58                    0.41.0-0ubuntu1.16+esm6
                                  Available with Ubuntu Pro
  poppler-utils                   0.41.0-0ubuntu1.16+esm6
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7426-2
  https://ubuntu.com/security/notices/USN-7426-1
  CVE-2025-32364, CVE-2025-32365