USN-7471-1: poppler vulnerabilities

USN-7471-1: poppler vulnerabilities
29 April 2025

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

Releases

• Ubuntu 25.04
• Ubuntu 24.10
• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 ESM
• Ubuntu 18.04 ESM

Packages
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
• libpoppler134 - 24.02.0-1ubuntu9.4
• poppler-utils - 24.02.0-1ubuntu9.4
  Ubuntu 22.04
• libpoppler118 - 22.02.0-2ubuntu0.8
• poppler-utils - 22.02.0-2ubuntu0.8
  Ubuntu 20.04
• libpoppler97 - 0.86.1-0ubuntu1.7
• poppler-utils - 0.86.1-0ubuntu1.7
  Ubuntu 18.04
• libpoppler73 - 0.62.0-2ubuntu2.14+esm6
• poppler-utils - 0.62.0-2ubuntu2.14+esm6
  In general, a standard system update will make all the necessary changes.