[USN-3668-1] Exempi vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3668-1
June 04, 2018

exempi vulnerabilities
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Exempi could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- exempi: library to parse XMP metadata

Details:

It was discovered that Exempi incorrectly handled certain media files. If a
user or automated system were tricked into opening a specially crafted
file, a remote attacker could cause Exempi to hang or 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:
  exempi                          2.4.3-1ubuntu1.1
  libexempi3                      2.4.3-1ubuntu1.1

Ubuntu 16.04 LTS:
  exempi                          2.2.2-2ubuntu0.1
  libexempi3                      2.2.2-2ubuntu0.1

Ubuntu 14.04 LTS:
  exempi                          2.2.1-1ubuntu1.1
  libexempi3                      2.2.1-1ubuntu1.1

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

References:
  https://usn.ubuntu.com/usn/usn-3668-1
  CVE-2017-18233, CVE-2017-18234, CVE-2017-18236, CVE-2017-18238,
  CVE-2018-7728, CVE-2018-7729, CVE-2018-7730, CVE-2018-7731

Package Information:
  https://launchpad.net/ubuntu/+source/exempi/2.4.3-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/exempi/2.2.2-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/exempi/2.2.1-1ubuntu1.1

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