USN-3638-1: QPDF vulnerabilities

7 May 2018

qpdf vulnerabilities

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

  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


Several security issues were fixed in QPDF.

Software Description

  • qpdf - tools for transforming and inspecting PDF files


It was discovered that QPDF incorrectly handled certain malformed files. A remote attacker could use this issue to cause QPDF to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 17.10
libqpdf21 - 8.0.2-3~17.10.1
qpdf - 8.0.2-3~17.10.1
Ubuntu 16.04 LTS
libqpdf21 - 8.0.2-3~16.04.1
qpdf - 8.0.2-3~16.04.1
Ubuntu 14.04 LTS
libqpdf21 - 8.0.2-3~14.04.1
qpdf - 8.0.2-3~14.04.1

To update your system, please follow these instructions:

This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.