#VU23914 NULL pointer dereference in SQLite


Published: 2020-01-03 | Updated: 2020-01-22

Vulnerability identifier: #VU23914

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2019-19923

CWE-ID:

Exploitation vector: Network

Exploit availability:

Vulnerable software:
SQLite
Server applications / Database software

Vendor: 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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SQLite: 3.30.1


Fixed software versions

CPE

External links
http://github.com/sqlite/sqlite/commit/396afe6f6aa90a31303c183e11b2b2d4b7956b35


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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