An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.
lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html
lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.html
lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
access.redhat.com/errata/RHSA-2019:2519
access.redhat.com/errata/RHSA-2019:3299
bugs.php.net/bug.php?id=77630
lists.debian.org/debian-lts-announce/2019/03/msg00043.html
security.netapp.com/advisory/ntap-20190502-0007/
support.f5.com/csp/article/K53825211
usn.ubuntu.com/3922-1/
usn.ubuntu.com/3922-2/
usn.ubuntu.com/3922-3/
www.debian.org/security/2019/dsa-4403
www.tenable.com/security/tns-2019-07