It was found that some PostgreSQL extensions did not use search_path safely in their installation script. An attacker with sufficient privileges could use this flaw to trick an administrator into executing a specially crafted script, during the installation or update of such extension. This affects PostgreSQL versions before 12.4, before 11.9, before 10.14, before 9.6.19, and before 9.5.23.
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00043.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00008.html
https://bugzilla.redhat.com/show_bug.cgi?id=1865746
https://lists.debian.org/debian-lts-announce/2020/08/msg00028.html
https://security.gentoo.org/glsa/202008-13
Source: MITRE
Published: 2020-08-24
Updated: 2020-09-18
Type: CWE-426
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 7.3
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.3
Severity: HIGH