In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress "quines" gzip files, resulting in an infinite loop.
7.4.318.0.248.1.117.4.318.0.248.1.117.4.318.0.248.1.117.4.318.0.248.1.117.4.318.0.248.1.11Exploitability
AV:LAC:LPR:HUI:NScope
S:UImpact
C:NI:NA:L2.3/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:LOther