file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while a copy operation is in progress. Instead, default permissions are used.
https://gitlab.gnome.org/GNOME/glib/commit/d8f8f4d637ce43f8699ba94c9b7648beda0ca174
https://security.netapp.com/advisory/ntap-20190606-0003/
https://usn.ubuntu.com/4014-1/
https://usn.ubuntu.com/4014-2/
https://lists.debian.org/debian-lts-announce/2019/06/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00076.html
Source: MITRE
Published: 2019-05-29
Updated: 2023-03-24
Type: CWE-362
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL