Security update for spice

This update for spice fixes the following issues:

Security issues fixed:

- CVE-2018-10873: Fix potential heap corruption when demarshalling (bsc#1104448)
- CVE-2018-10893: Avoid buffer overflow on image lz checks (bsc#1101295)

This update was imported from the SUSE:SLE-12-SP3:Update update project.

Fixed bugs
bnc#1101295
VUL-0: CVE-2018-10893: spice, spice-gtk: Insufficient encoding checks for LZ can cause different integer/buffer overflows
bnc#1104448
VUL-0: CVE-2018-10873: spice-gtk,spice: post-auth crash or potential heap corruption when demarshalling
Selected Binaries
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