Out-of-bounds write in SQLite SQLite

1) Out-of-bounds write

EUVDB-ID: #VU30165

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15358

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SQLite: 3.32.0 - 3.32.2

External links

http://security.netapp.com/advisory/ntap-20200709-0001/
http://www.sqlite.org/src/info/10fa79d00f8091e5
http://www.sqlite.org/src/timeline?p=version-3.32.3&bt=version-3.32.2
http://www.sqlite.org/src/tktview?name=8f157e8010

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.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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