Several vulnerabilities have been discovered in the PostgreSQL
database system.
CVE-2023-5868
Jingzhou Fu discovered a memory disclosure flaw in aggregate
function calls.
CVE-2023-5869
Pedro Gallegos reported integer overflow flaws resulting in buffer
overflows in the array modification functions.
CVE-2023-5870
Hemanth Sandrana and Mahendrakar Srinivasarao reported that the
pg_cancel_backend role can signal certain superuser processes,
potentially resulting in denial of service.
CVE-2023-39417
Micah Gate, Valerie Woolard, Tim Carey-Smith, and Christoph Berg
reported that an extension script using @substitutions@ within
quoting may allow to perform an SQL injection for an attacker having
database-level CREATE privileges.
CVE-2023-39418
Dean Rasheed reported that the MERGE command to enforce UPDATE or
SELECT row security policies.
https://security-tracker.debian.org/tracker/DSA-5553-1
