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PostgreSQL: CVE-2023-2455: Row security policies disregard user ID changes after inlining

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PostgreSQL: CVE-2023-2455: Row security policies disregard user ID changes after inlining

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/12/2023
Created
05/12/2023
Added
05/12/2023
Modified
01/15/2024

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.

Solution(s)

  • postgres-upgrade-12_15
  • postgres-upgrade-13_11
  • postgres-upgrade-14_8
  • postgres-upgrade-15_3

References

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