decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.
1:1.27.2-2ubuntu3.41:1.30.1-4ubuntu6.41:1.30.1-7ubuntu21:1.21.0-1ubuntu1.4+esm11:1.22.0-15ubuntu1.4+esm1Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:NA:HCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H