Multiple vulnerabilities in SQLite

Published: 2019-03-22

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-9936 CVE-2019-9937
CWE-ID	CWE-125 CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SQLite Server applications / Database software
Vendor	SQLite

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU18059

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-9936

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the fts5HashEntrySort in sqlite3.c when running fts5 prefix queries inside a transaction. A remote user with ability to send queries can trigger heap-based buffer over-read error and read contents of memory on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SQLite: 1.1.0 - 3.27.1

External links

http://sqlite.org/src/info/b3fa58dd7403dbd4
http://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114382.html
http://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114394.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged 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.

2) NULL pointer dereference

EUVDB-ID: #VU18060

Risk: Medium

CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-9937

CWE-ID: CWE-476 - NULL Pointer Dereference