#VU18059 Out-of-bounds read in SQLite - CVE-2019-9936

Vulnerability identifier: #VU18059

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-9936

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SQLite
Server applications / Database software

Vendor: SQLite

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

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

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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