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CVE-2021-3677

CVE-2021-3677

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 1.4% · Fix available

Published
Updated

Stack: system · database

Affected products and versions

  • postgresql

    Versions
    • Fixedin v13.4, v12.8, v11.13: Affected

    No fix published

  • postgresql-13 Debian:11

    Versions
    • 13.3-1
    Affected ranges
    • ECOSYSTEM: < 13.4-0+deb11u1

    Update to 13.4-0+deb11u1

  • postgresql-12 Ubuntu:20.04:LTS

    Versions
    • 12.0-1
    • 12.1-1
    • 12.1-2build1
    • 12.2-1
    • 12.2-1ubuntu2
    • 12.2-4
    • 12.4-0ubuntu0.20.04.1
    • 12.5-0ubuntu0.20.04.1
    • 12.6-0ubuntu0.20.04.1
    • 12.7-0ubuntu0.20.04.1
    Affected ranges
    • ECOSYSTEM: < 12.8-0ubuntu0.20.04.1

    Update to 12.8-0ubuntu0.20.04.1

Original sources

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