Ubuntu Security Notice USN-4636-1

Ubuntu Security Notice 4636-1 - 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.
Ubuntu Security Notice USN-4636-1