#VU27023 Input validation error in SQLite - CVE-2020-11655

Vulnerability identifier: #VU27023

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-2020-11655

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 of user-supplied input when the AggInfo object's initialization is mishandled. A remote attacker can pass specially crafted input via a malformed window-function query to the application and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SQLite: 3.31.0 - 3.31.1

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External links
http://security.netapp.com/advisory/ntap-20200416-0001/
http://www3.sqlite.org/cgi/src/info/4a302b42c7bf5e11
http://www3.sqlite.org/cgi/src/tktview?name=af4556bb5c

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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.