CVE-2023-2454
Description
A flaw was found in PostgreSQL. Certain database calls could permit an attacker with elevated database-level privileges to execute arbitrary code.
Statement
The severity for Red Hat Enterprise Linux and Red Hat Software Collections has been set to Moderate because the vulnerability requires an attacker to have database-level CREATE privilege to execute arbitrary code as the bootstrap superuser. As it requires a HIGH privileged user, it reduces the impact of this vulnerability.
Red Hat OpenShift Dev Spaces is not affected by this issue as PostgreSQL was decommissioned on the latest Red Hat OpenShift Dev Spaces 3.6 release, as described in: https://access.redhat.com/documentation/en-us/red_hat_openshift_dev_spaces/3.6/html/release_notes_and_known_issues/removed-functionalities#removed-functionality-crw-4105
Red Hat Satellite does not include the affected PostgreSQL, however, the component is shipped with Red Hat Enterprise Linux and consumed by Satellite. Red Hat Satellite users are advised to check the impact of Red Hat Enterprise Linux since any necessary fixes will also be distributed through it.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.2 | 7.2 | 7.2 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | High | High | High |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
An attacker could provide unexpected values and cause a program crash or arbitrary control of resource allocation, leading to excessive consumption of resources such as memory and CPU.
Confidentiality
Technical Impact: Read Memory; Read Files or Directories
An attacker could read confidential data if they are able to control resource references.
Integrity,Confidentiality,Availability
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
An attacker could use malicious input to modify data or possibly alter control flow in unexpected ways, including arbitrary command execution.
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