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Oracle Linux: CVE-2023-2455: ELSA-2023-4539: postgresql:10 security update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2023-2455: ELSA-2023-4539: postgresql:10 security update (MODERATE) (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:H/Au:S/C:P/I:P/A:N)
Published
05/11/2023
Created
06/23/2023
Added
06/22/2023
Modified
07/22/2024

Description

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. A flaw was found in PostgreSQL, which could permit incorrect policies being applied in certain cases where role-specific policies are used and a given query is planned under one role and 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 only affects databases that have used CREATE POLICY to define a row security policy.

Solution(s)

  • oracle-linux-upgrade-kernel-uek

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