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Ubuntu Security Notice USN-4688-1
January 11, 2021

jasper 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 JasPer.

Software Description:
- jasper: Library for manipulating JPEG-2000 files

Details:

It was discovered that Jasper incorrectly certain files.
An attacker could possibly use this issue to cause a crash.
(CVE-2018-18873)

It was discovered that Jasper incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-19542)

It was discovered that Jasper incorrectly handled certain JPC encoders.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2020-27828)

It was discovered that Jasper incorrectly handled certain images.
An attacker could possibly use this issue to expose sensitive information
or cause a crash.
(CVE-2017-9782)

Update instructions:

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

Ubuntu 16.04 LTS:
  libjasper1                      1.900.1-debian1-2.4ubuntu1.3

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

References:
  https://usn.ubuntu.com/4688-1
  CVE-2017-9782, CVE-2018-18873, CVE-2018-19542, CVE-2020-27828

Package Information:
  https://launchpad.net/ubuntu/+source/jasper/1.900.1-debian1-2.4ubuntu1.3