Denial of service in SQLite

1) Out-of-bounds read

EUVDB-ID: #VU18657

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-8457

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in rtreenode() function when handling invalid rtree tables. A remote attacker can send a specially crafted request to the application, trigger heap out-of-bounds read crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SQLite: 3.6.0 - 3.27.2

External links

http://www.sqlite.org/releaselog/3_28_0.html
http://www.sqlite.org/src/info/90acdbfce9c08858

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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