Integer Overflow or Wraparound

Affecting sqlite3 package, versions <3.16.2-5+deb9u2

Overview

SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries in a "merge" operation that occurs 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). This is a different vulnerability than CVE-2018-20346.

References

• Apple Security Advisory
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• Bugtraq Mailing List
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• Seclists Full Disclosure
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• Security Focus
• Ubuntu CVE Tracker
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