USN-4636-1: LibVNCServer, Vino vulnerability
It was discovered that LibVNCServer incorrectly handled certain internals.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Vino package ships with a LibVNCServer source and all listed releases were
affected for this package.
Source: USN-4636-1: LibVNCServer, Vino vulnerability