A buffer overflow exists in curl 7.12.3 to and including curl 7.58.0 in the FTP URL handling that allows an attacker to cause a denial of service or worse.
www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
www.securityfocus.com/bid/103414
www.securitytracker.com/id/1040531
access.redhat.com/errata/RHBA-2019:0327
access.redhat.com/errata/RHSA-2018:3157
access.redhat.com/errata/RHSA-2018:3558
access.redhat.com/errata/RHSA-2019:1543
access.redhat.com/errata/RHSA-2020:0544
access.redhat.com/errata/RHSA-2020:0594
curl.haxx.se/docs/adv_2018-9cd6.html
lists.debian.org/debian-lts-announce/2018/03/msg00012.html
usn.ubuntu.com/3598-1/
usn.ubuntu.com/3598-2/
www.debian.org/security/2018/dsa-4136
www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html