Upgrade tensorflow>=1.12.1

[animeshsingh]

Upgrade tensorflow to version 1.12.1 or later for security fixes
Details
CVE-2019-9635 More information
moderate severity
Vulnerable versions: >= 1.0.0, < 1.12.1
Patched version: 1.12.1
NULL pointer dereference in Google TensorFlow before 1.12.2 could cause a denial of service via an invalid GIF file.

CVE-2018-7575 More information
critical severity
Vulnerable versions: >= 1.0.0, < 1.7.1
Patched version: 1.7.1
Google TensorFlow 1.7.x and earlier is affected by a Buffer Overflow vulnerability. The type of exploitation is context-dependent.

CVE-2018-7577 More information
high severity
Vulnerable versions: >= 1.1.0, < 1.7.1
Patched version: 1.7.1
Memcpy parameter overlap in Google Snappy library 1.1.4, as used in Google TensorFlow before 1.7.1, could result in a crash or read from other parts of process memory.

CVE-2018-10055 More information
high severity
Vulnerable versions: >= 1.1.0, < 1.7.1
Patched version: 1.7.1
Invalid memory access and/or a heap buffer overflow in the TensorFlow XLA compiler in Google TensorFlow before 1.7.1 could cause a crash or read from other parts of process memory via a crafted configuration file.

CVE-2018-7576 More information
moderate severity
Vulnerable versions: >= 1.0.0, < 1.6.0
Patched version: 1.6.0
Google TensorFlow 1.6.x and earlier is affected by: Null Pointer Dereference. The type of exploitation is: context-dependent.

[hoffmansc]

Closed by #93