openEuler 22.03 LTS update for libpq

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU63126

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1552

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to incorrectly imposed security restrictions in Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pg_amcheck. A remote authenticated user with permission to create non-temp objects can execute arbitrary SQL functions under a superuser identity and escalate privileges within the application.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

libpq-devel: before 13.7-1

libpq-debugsource: before 13.7-1

libpq-debuginfo: before 13.7-1

libpq: before 13.7-1

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2104

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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