#VU34080 NULL pointer dereference in SQLite - CVE-2020-13632

Vulnerability identifier: #VU34080

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-2020-13632

CWE-ID: CWE-476

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 (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in ext/fts3/fts3_snippet.c in SQLite. A local user can trigger denial of service conditions via a crafted matchinfo() query.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SQLite: 3.8.10 - 3.31.1

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External links
https://bugs.chromium.org/p/chromium/issues/detail?id=1080459
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7KXQWHIY2MQP4LNM6ODWJENMXYYQYBN/
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc
https://security.gentoo.org/glsa/202007-26
https://security.netapp.com/advisory/ntap-20200608-0002/
https://sqlite.org/src/info/a4dd148928ea65bd
https://usn.ubuntu.com/4394-1/
https://www.oracle.com/security-alerts/cpujul2020.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.