A poppler regression update has been released for Ubuntu Linux 16.04 ESM and 18.04 LTS.

USN-5606-2: poppler regression

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Ubuntu Security Notice USN-5606-2
September 14, 2022

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

USN-5606-1 caused a regression in poppler.

Software Description:
- poppler: PDF rendering library

Details:

USN-5606-1 fixed a vulnerability in poppler. Unfortunately it was missing a
commit to fix it properly. This update provides
the corresponding fix for Ubuntu 18.04 LTS and Ubuntu 16.04 ESM.

We apologize for the inconvenience.

Original advisory details:

It was discovered that poppler incorrectly handled certain
PDF. An attacker could possibly use this issue to cause a
denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
libpoppler-private-dev 0.62.0-2ubuntu2.14
libpoppler73 0.62.0-2ubuntu2.14
poppler-utils 0.62.0-2ubuntu2.14

Ubuntu 16.04 ESM:
libpoppler-private-dev 0.41.0-0ubuntu1.16+esm2
libpoppler58 0.41.0-0ubuntu1.16+esm2
poppler-utils 0.41.0-0ubuntu1.16+esm2

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

References:
  https://ubuntu.com/security/notices/USN-5606-2
  https://ubuntu.com/security/notices/USN-5606-1
  https://launchpad.net/bugs/1989515

Package Information:
  https://launchpad.net/ubuntu/+source/poppler/0.62.0-2ubuntu2.14