A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-228-06
https://www.postgresql.org/support/security/CVE-2023-5869/
https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/
https://bugzilla.redhat.com/show_bug.cgi?id=2247169
https://access.redhat.com/security/cve/CVE-2023-5869
https://access.redhat.com/errata/RHSA-2024:0337
https://access.redhat.com/errata/RHSA-2024:0332
https://access.redhat.com/errata/RHSA-2024:0304
https://access.redhat.com/errata/RHSA-2023:7885
https://access.redhat.com/errata/RHSA-2023:7884
https://access.redhat.com/errata/RHSA-2023:7883
https://access.redhat.com/errata/RHSA-2023:7878
https://access.redhat.com/errata/RHSA-2023:7790
https://access.redhat.com/errata/RHSA-2023:7789
https://access.redhat.com/errata/RHSA-2023:7788
https://access.redhat.com/errata/RHSA-2023:7786
https://access.redhat.com/errata/RHSA-2023:7785
https://access.redhat.com/errata/RHSA-2023:7784
https://access.redhat.com/errata/RHSA-2023:7783
https://access.redhat.com/errata/RHSA-2023:7778
https://access.redhat.com/errata/RHSA-2023:7772
https://access.redhat.com/errata/RHSA-2023:7771
https://access.redhat.com/errata/RHSA-2023:7770
https://access.redhat.com/errata/RHSA-2023:7714
https://access.redhat.com/errata/RHSA-2023:7695
https://access.redhat.com/errata/RHSA-2023:7694
https://access.redhat.com/errata/RHSA-2023:7667
https://access.redhat.com/errata/RHSA-2023:7666
https://access.redhat.com/errata/RHSA-2023:7656
https://access.redhat.com/errata/RHSA-2023:7616
https://access.redhat.com/errata/RHSA-2023:7581
https://access.redhat.com/errata/RHSA-2023:7580