CVE-2023-5870: Postgresql: role pg_signal_backend can signal certain superuser processes.

Description

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

Classification

CVE ID: CVE-2023-5870

Affected Products

Vendor: Red Hat

Product: Red Hat Advanced Cluster Security 4.2

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.19% (probability of being exploited)

EPSS Percentile: 56.86% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

Timeline

2024-12-03 00:11:38 UTC
CVE

Postgresql: role pg_signal_backend can signal certain superuser processes.