An integer overflow exists in the FTS5 https://sqlite.org/fts5.html extension. It occurs when the size of an array of tombstone pointers is calculated and truncated into a 32-bit integer. A pointer to partially controlled data can then be written out of bounds.
Exploitability
AV:NAC:HAT:PPR:LUI:AVulnerable System
VC:NVI:HVA:LSubsequent System
SC:NSI:HSA:L6.9/CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:H/VA:L/SC:N/SI:H/SA:LOther