A vulnerability was found in PostgreSQL versions 11.x up to excluding 11.3, 10.x up to excluding 10.8, 9.6.x up to, excluding 9.6.13, 9.5.x up to, excluding 9.5.17. PostgreSQL maintains column statistics for tables. Certain statistics, such as histograms and lists of most common values, contain values taken from the column. PostgreSQL does not evaluate row security policies before consulting those statistics during query planning; an attacker can exploit this to read the most common values of certain columns. Affected columns are those for which the attacker has SELECT privilege and for which, in an ordinary query, row-level security prunes the set of rows visible to the attacker.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||4.3||Base Metrics:||AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||Low||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||None|
|Oracle Linux version 7 (rh-postgresql10-postgresql)||ELSA-2021-9290||2021-06-11|
|Oracle Linux version 8 (postgresql)||ELSA-2020-3669||2020-09-09|
|Oracle Linux version 8 (postgresql)||ELSA-2020-5619-1||2020-12-23|
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team