QID 356297

Date Published: 2023-09-28

QID 356297: Amazon Linux Security Advisory for postgresql : ALASPOSTGRESQL14-2023-001

Postgresql: client memory disclosure when connecting with kerberos to modified server (cve-2022-41862) this enabled an attacker having database-level create privilege to execute arbitrary code as the bootstrap superuser.
Database owners have that right by default, and explicit grants may extend it to other users. (
( CVE-2023-2454) while( CVE-2016-2193 fixed most interaction between row security and user id changes, it missed a scenario involving function inlining.
This leads to potentially incorrect policies being applied in 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. (
( CVE-2023-2455)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.2 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALASPOSTGRESQL14-2023-001 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356297

    CVE-2023-2455 | CVE-2022-41862 | CVE-2023-2454 |
    Software Advisories
    Advisory ID Software Component Link
    ALASPOSTGRESQL14-2023-001 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALASPOSTGRESQL14-2023-001.html
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