The lzo1x_decompress function in lzo1x_d.ch in LZO 2.08, as used in lrzip 0.631, allows remote attackers to cause a denial of service (invalid memory read and application crash) via a crafted archive.
https://security.gentoo.org/glsa/202005-01
https://github.com/ckolivas/lrzip/issues/68
https://blogs.gentoo.org/ago/2017/05/07/lrzip-invalid-memory-read-in-lzo_decompress_buf-stream-c/