#VU23914 NULL pointer dereference in SQLite - CVE-2019-19923
Published: January 3, 2020 / Updated: January 22, 2020
Vulnerability identifier: #VU23914
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-19923
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 flattenSubquery in "select.c" mishandles certain uses of SELECT DISTINCT involving a LEFT JOIN in which the right-hand side is a view. A remote attacker can cause a NULL pointer dereference and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.