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Ubuntu Security Notice USN-5099-1
October 04, 2021

imlib2 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

Imlib2 could be made to denial of service and possibly execute
arbitrary code.

Software Description:
- imlib2: Image manipulation and rendering library

Details:

It was discovered that Imlib2 incorrectly handled certain ICO images.
An attacker could use this issue to cause a denial of service
and possibly execute arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS:
  libimlib2                       1.6.1-1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-5099-1
  CVE-2020-12761

Package Information:
  https://launchpad.net/ubuntu/+source/imlib2/1.6.1-1ubuntu0.1