Package: bash Version: 4.4-1 Severity: serious https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1518483
This sounds like a potential source of troubles if the next upload of bash gets automatically compiled with PIE. Debian has the same "buildds are running older kernels" issue. Incompatibilities between bash and jessie kernels also have the potential to cause serious problems in various situations during jessie -> stretch upgrades.
