Comment 4 for bug 1674930

nvidia-367 was removed as part of the CVE-2016-8826 & CVE-2017-0318 fix in #1659586

nvidia-367 was considered no longer supported by NVIDIA, so nvidia-375 was uploaded and nvidia-367 replaced with a transitional package to upgrade.

The error message suggests that there is a 367 series of legacy driver, though the legacy driver page presently lists no such series (http://www.nvidia.com/object/unix.html). According to the README, the 367 series driver will in fact be maintained specially for GRID GPUs only.

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Quote from:
http://us.download.nvidia.com/XFree86/Linux-x86_64/375.39/README/supportedchips.html
ftp://ftp.icm.edu.pl/packages/linux-nvidia/Linux-x86/375.10/README/README.txt

Below are the legacy GPUs that are no longer supported in the unified driver.
These GPUs will continue to be maintained through the special legacy NVIDIA
GPU driver releases.

The 367.xx driver supports the following set of GPUs:

NVIDIA GPU product Device PCI ID* VDPAU features
---------------------------------- --------------- ---------------
GRID K340 0FEF D
GRID K1 0FF2 D
GRID K520 118A D
GRID K2 11BF D
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In terms of short-term workarounds, the nvidia-340 package also claims to support the K520. It may be a usable alternative until a nvidia-367 solution is available.