Rapid7 Vulnerability & Exploit Database

FreeBSD: VID-B471130B-FB86-11EB-87DB-6CC21735F730 (CVE-2021-3677): PostgreSQL server -- Memory disclosure in certain queries

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

FreeBSD: VID-B471130B-FB86-11EB-87DB-6CC21735F730 (CVE-2021-3677): PostgreSQL server -- Memory disclosure in certain queries

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
08/12/2021
Created
11/08/2022
Added
11/04/2022
Modified
11/04/2022

Description

A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.

Solution(s)

  • freebsd-upgrade-package-postgresql11-server
  • freebsd-upgrade-package-postgresql12-server
  • freebsd-upgrade-package-postgresql13-server

References

  • CVE-2021-3677
  • USN-5038-1

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;