It looks like they don't affect the Qubes OS: https://www.qubes-os.org/news/2018/04/25/xsa-258-259-qubes-not-affected/ https://www.qubes-os.org/news/2018/04/25

It looks like they don't affect the Qubes OS: https://www.qubes-os.org/news/2018/04/25/xsa-258-259-qubes-not-affected/ https://www.qubes-os.org/news/2018/04/25/xsa-258-259-qubes-n...