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Advisories

SQLite before 3.54.0 Stack Exhaustion via countOfViewOptimization() in VALUES Clause

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Severity
medium
Date
Affecting

  • SQLite >= 0, < 3.54.0

CWE
  • CWE-674 Uncontrolled Recursion
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Ke Han, Abraxas Labs, D. Richard Hipp
Description
SQLite before 3.54.0 contains a stack exhaustion vulnerability in countOfViewOptimization() that allows attackers to crash the host process via count(*) over a large multi-row VALUES clause. Attackers supplying SQL or a database file with a crafted view can trigger deeply nested TK_PLUS expressions whose recursive freeing in sqlite3ExprDeleteNN() exhausts the C stack, causing denial of service.

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