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TimescaleDB, an open-source time-series SQL database, has a privilege escalation vulnerability in versions 2.8.0 through 2.9.2. During installation, TimescaleDB creates a telemetry job that is runs as the installation user. The queries run as part of the telemetry data collection were not run with a locked down `search_path`, allowing malicious users to create functions that would be executed by the telemetry job, leading to privilege escalation. In order to be able to take advantage of this vulnerability, a user would need to be able to create objects in a database and then get a superuser to install TimescaleDB into their database. When TimescaleDB is installed as trusted extension, non-superusers can install the extension without help from a superuser. Version 2.9.3 fixes this issue. As a mitigation, the `search_path` of the user running the telemetry job can be locked down to not include schemas writable by other users. The vulnerability is not exploitable on instances in Timescal

ALT-PU-2023-8830: package `postgresql14-timescaledb` update to version 2.9.3-alt1

ALT-PU-2023-8734: package `postgresql13-timescaledb` update to version 2.9.3-alt1

ALT-PU-2023-8693: package `postgresql15-timescaledb` update to version 2.9.3-alt1

ALT-PU-2023-8598: package `postgresql14-timescaledb` update to version 2.9.3-alt1

ALT-PU-2023-8548: package `postgresql13-timescaledb` update to version 2.9.3-alt1