CVE-2023-39418
Postgresql: merge fails to enforce update or select row security policies
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows.
Se encontró una vulnerabilidad en PostgreSQL con el uso del comando MERGE, que no puede probar nuevas filas con las políticas de seguridad de filas definidas para ACTUALIZAR y SELECCIONAR. Si las políticas ACTUALIZAR y SELECCIONAR prohíben algunas filas que las políticas INSERTAR no prohíben, un usuario podría almacenar dichas filas.
It was discovered that PostgreSQL incorrectly handled certain extension script substitutions. An attacker having database-level CREATE privileges can use this issue to execute arbitrary code as the bootstrap superuser. It was discovered that PostgreSQL incorrectly handled the MERGE command. A remote attacker could possibly use this issue to bypass certain UPDATE and SELECT policies. This issue only affected Ubuntu 23.04.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2023-08-01 CVE Reserved
- 2023-08-11 CVE Published
- 2024-12-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-1220: Insufficient Granularity of Access Control
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20230915-0002 | Third Party Advisory |
|
| https://www.debian.org/security/2023/dsa-5553 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2228112 | 2023-12-20 | |
| https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=cb2ae5741f2458a474ed3c31458d242e678ff229 | 2024-02-16 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2023:7785 | 2024-02-16 | |
| https://access.redhat.com/errata/RHSA-2023:7883 | 2024-02-16 | |
| https://access.redhat.com/errata/RHSA-2023:7884 | 2024-02-16 | |
| https://access.redhat.com/errata/RHSA-2023:7885 | 2024-02-16 | |
| https://access.redhat.com/security/cve/CVE-2023-39418 | 2023-12-20 | |
| https://www.postgresql.org/support/security/CVE-2023-39418 | 2024-02-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | >= 15.0 < 15.4 Search vendor "Postgresql" for product "Postgresql" and version " >= 15.0 < 15.4" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 12.0 Search vendor "Debian" for product "Debian Linux" and version "12.0" | - |
Affected
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