SB2019032205 - Multiple vulnerabilities in SQLite

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2019-9936)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the fts5HashEntrySort in sqlite3.c when running fts5 prefix queries inside a transaction. A remote user with ability to send queries can trigger heap-based buffer over-read error and read contents of memory on the system.

2) NULL pointer dereference (CVE-ID: CVE-2019-9937)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error when processing interleaving reads and writes in a single transaction with an fts5 virtual table in fts5ChunkIterate in sqlite3.c. This is related to ext/fts5/fts5_hash.c and ext/fts5/fts5_index.c. A remote attacker can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://sqlite.org/src/info/b3fa58dd7403dbd4
• https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114382.html
• https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114394.html
• https://sqlite.org/src/info/45c73deb440496e8
• https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114383.html
• https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114393.html