lizard -- Negative size passed to memcpy resulting in memory corruption

[email protected] reports:

In Lizard v1.0 and LZ5 v2.0 (the prior release, before the product
was renamed), there is an unchecked buffer size during a memcpy in
the Lizard_decompress_LIZv1 function (lib/lizard_decompress_liz.h).
Remote attackers can leverage this vulnerability to cause a denial
of service via a crafted input file, as well as achieve remote code
execution.