#VU18060 NULL pointer dereference in SQLite - CVE-2019-9937
Published: March 22, 2019
Vulnerability identifier: #VU18060
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-9937
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SQLite
SQLite
Software vendor:
SQLite
SQLite
Description
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.