SB2024010239 - Red Hat Enterprise Linux 8 update for the postgresql:15 module
Published: January 2, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2023-5869)
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in array modification. A remote user can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
2) Information disclosure (CVE-ID: CVE-2023-5868)
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in the aggregate function calls when handling "unknown"-type arguments. A remote user can read parts of system memory.
3) SQL injection (CVE-ID: CVE-2023-39417)
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data within the extension script @substitutions@, which uses @extowner@, @extschema@, or @extschema:...@ inside a quoting construct. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-5870)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to pg_cancel_backend rolse signals background workers, including the logical replication launcher, autovacuum workers and the autovacuum launcher. A remote privileged user can abuse this behavior and perform a denial of service (DoS) attack.
5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-39418)
The vulnerability allows a remote user to escalate privileges within the application.
The vulnerability exists due to the MERGE command does not properly enforce UPDATE or SELECT row security policies. A remote user can read or update protected data.
Remediation
Install update from vendor's website.