#VU63627 Buffer overflow in SQLite - CVE-2021-36690

Vulnerability identifier: #VU63627

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-36690

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SQLite
Server applications / Database software

Vendor: SQLite

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a segmentation fault in the sqlite3 command-line component when processing SQL queries in the idxGetTableInfo() function. A local user can pass a specially crafted SQL query and crash the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SQLite: 3.36.0

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External links
https://www.sqlite.org/forum/forumpost/718c0a8d17
https://www.oracle.com/security-alerts/cpujan2022.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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