=========================================================================Ubuntu Security Notice USN-4109-1
August 21, 2019

openjpeg2 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in OpenJPEG.

Software Description:
- openjpeg2: JPEG 2000 image compression/decompression library

Details:

It was discovered that OpenJPEG incorrectly handled certain PGX files. An
attacker could possibly use this issue to cause a denial of service or possibly
remote code execution. (CVE-2017-17480)

It was discovered that OpenJPEG incorrectly handled certain files. An attacker
could possibly use this issue to cause a denial of service. (CVE-2018-14423)

It was discovered that OpenJPEG incorrectly handled certain PNM files. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2018-18088)

It was discovered that OpenJPEG incorrectly handled certain BMP files. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2018-5785, CVE-2018-6616)

Update instructions:

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

Ubuntu 18.04 LTS:
  libopenjp2-7                    2.3.0-2build0.18.04.1
  libopenjp3d7                    2.3.0-2build0.18.04.1
  libopenjpip7                    2.3.0-2build0.18.04.1

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

References:
  https://ubuntu.com/security/notices/USN-4109-1
  CVE-2017-17480, CVE-2018-14423, CVE-2018-18088, CVE-2018-5785,
  CVE-2018-6616

Package Information:
  https://launchpad.net/ubuntu/+source/openjpeg2/2.3.0-2build0.18.04.1