Threats tagged 'ghsa-p6pp-53vr-h4w8'

A heap buffer overflow vulnerability exists in the PostgreSQL regular expression processing, allowing a query author to execute arbitrary code with the privileges of the operating system user running the database. This occurs due to unanticipated data growth when text is round-tripped through pg_wchar, involving text that would not pass encoding validation. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.