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Ubuntu Security Notice USN-4880-1
March 16, 2021

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

- Ubuntu 16.04 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 image data. An
attacker could use this issue to cause OpenJPEG to crash, leading to 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 16.04 LTS:
  libopenjp2-7                    2.1.2-1.1+deb9u6build0.16.04.1
  libopenjp3d7                    2.1.2-1.1+deb9u6build0.16.04.1
  libopenjpip7                    2.1.2-1.1+deb9u6build0.16.04.1

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

References:
  https://ubuntu.com/security/notices/USN-4880-1
  CVE-2020-27814, CVE-2020-27823, CVE-2020-27824, CVE-2020-27841,
  CVE-2020-27845

Package Information:
  https://launchpad.net/ubuntu/+source/openjpeg2/2.1.2-1.1+deb9u6build0.16.04.1