It was discovered that VCFtools improperly handled certain input. If a user
were tricked into opening a crafted input file, VCFtools could be made to
crash or possibly cause other unspecified impact.
(CVE-2018-11099, CVE-2018-11129, CVE-2018-11130)
It was discovered that VCFtools improperly handled memory
allocation/deallocation, resulting in a use-after-free vulnerability.
If a victim were tricked into opening a specially crafted VCF File, an
attacker could cause VCFtools to leak sensitive information or possibly
execute arbitrary code. (CVE-2019-1010127)