CVE-2020-13632

En el archivo ext/fts3/fts3_snippet.c en SQLite versiones anteriores a la versión 3.32.0, tiene una desreferencia del puntero NULL por medio de una consulta en la función matchinfo() especialmente diseñada.

A NULL pointer dereference flaw was found in the matchinfo auxiliary function of the SQLite FTS3 extension module. This flaw allows an attacker who can execute SQL statements to crash the application, resulting in a denial of service.

It was discovered that SQLite incorrectly handled certain corrupted schemas. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. It was discovered that SQLite incorrectly handled certain SELECT statements. An attacker could possibly use this issue to cause a denial of service. This issue was only addressed in Ubuntu 19.10. It was discovered that SQLite incorrectly handled certain self-referential views. An attacker could possibly use this issue to cause a denial of service. This issue was only addressed in Ubuntu 19.10. Various other issues were also addressed.