Vulnerability identifier: #VU45749

Vulnerability risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-14350

CWE-ID: CWE-426

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

The vulnerability allows a remote user to escalate privileges within the database.

The vulnerability exists due to the way PostgreSQL handles CREATE EXTENSION statements. A remote user with permission to create objects in the new extension's schema or a schema of a prerequisite extension can execute arbitrary SQL functions under the identity of the superuser in certain cases.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PostgreSQL: 12.0 - 12.3, 11.0 - 11.8, 10.0 - 10.13, 9.6.0 - 9.6.18, 9.5 - 9.5.22

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External links
http://www.postgresql.org/about/news/2060

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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.