The VDir::MapPathA and VDir::MapPathW functions in Perl 5.22 allow remote attackers to cause a denial of service (out-of-bounds read) and possibly execute arbitrary code via a crafted (1) drive letter or (2) pInName argument.
https://www.oracle.com/security-alerts/cpujul2020.html
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html