Improper input validation in Postgresql
CVE-2023-2455
Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.007 (49.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Postgresql
- Fedoraproject Fedora — versions 38
- Redhat Enterprise_linux — versions 8.0, 9.0
- Redhat Software_collections
- N/a Postgresql — versions PostgreSQL 15.3, PostgreSQL 14.8, PostgreSQL 13.11, PostgreSQL 12.15, PostgreSQL 11.20
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (Vendor Advisory)
- secalert@redhat.com
Frequently asked questions
- What is CVE-2023-2455?
- CVE-2023-2455 is a medium-severity vulnerability in Postgresql, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2023-06-09.
- How severe is CVE-2023-2455?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2023-2455 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.