#VU23189 Input validation error in SQLite - CVE-2019-19242

Vulnerability identifier: #VU23189

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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-2019-19242

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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 insufficient validation within the sqlite3ExprCodeTarget(0 function in expr.c when processing the TK_COLUMN case. A remote attacker can pass specially crafted data to the application and perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SQLite: 3.26.0 - 3.30.1

---

External links
https://github.com/sqlite/sqlite/commit/57f7ece78410a8aae86aa4625fb7556897db384c

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.