CVE-2018-20346: Debian Linux

High severity, CVSS 8.1. EPSS: 10.3% chance of exploitation in the next 30 days.

SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries that occur after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases), aka Magellan.

Affected products

• Debian Debian Linux: version 8.0 only
• Google Chrome: before 71.0.3578.80 (fixed in 71.0.3578.80)
• Opensuse Leap: version 15.0 only; version 42.3 only
• Red Hat Linux: version 6.0 only
• Sqlite Sqlite: before 3.25.3 (fixed in 3.25.3)

Published 2018-12-21. Last modified 2026-06-17.