A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. An attacker having permission to create non-temporary objects in at least one schema can execute arbitrary SQL functions under the identity of a superuser. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
https://bugzilla.redhat.com/show_bug.cgi?id=1894425
https://lists.debian.org/debian-lts-announce/2020/12/msg00005.html
https://security.gentoo.org/glsa/202012-07
Source: MITRE
Published: 2020-11-16
Updated: 2020-12-07
Type: CWE-89
Base Score: 6.5
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH