Resource Exhaustion Affecting postgresql15-private-libs package, versions <0:15.5-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-AMZN2023-POSTGRESQL15PRIVATELIBS-6147113
  • published9 Jan 2024
  • disclosed10 Dec 2023

Introduced: 10 Dec 2023

CVE-2023-5870  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 postgresql15-private-libs to version 0:15.5-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2024-464.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql15-private-libs package and not the postgresql15-private-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Scores

version 3.1