OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which runs as root will parse the new config and cause an out-of-bound write. This issue has been patched in version 2.4.15.
Exploitability
AV:LAC:LPR:HUI:NScope
S:CImpact
C:NI:NA:H6/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H