LZ4 is lossless compression algorithm, providing compression speed at 400 MB/s per core, scalable with multi-cores CPU. It also features an extremely fast decoder, with speed in multiple GB/s per core, typically reaching RAM speed limits on multi-core systems. A high compression derivative, called LZ4_HC, is also provided. It trades CPU time for compression ratio.
Recent findings show that this code is currently vulnerable to remote code execution:
http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html
https://www.securitymouse.com/lms-2014-06-16-6
The follow up says, “not so much.”