rsync, when running in daemon mode, does not properly call setgroups before dropping privileges, which could provide supplemental group privileges to local users, who could then read certain files that would otherwise be disallowed.
http://www.securityfocus.com/bid/4285
http://www.redhat.com/support/errata/RHSA-2002-026.html
Source: Mitre, NVD
Published: 2002-03-15
Updated: 2020-11-16
Base Score: 2.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High