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CVE-2021-3393

CVE-2021-3393

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

An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

CVSS 4.3 · Medium · EPSS 1.2% · Fix available

Published
Updated

Stack: system · database

Affected products and versions

  • postgresql

    Versions
    • postgresql 13.2, postgresql 12.6, postgresql 11.11: Affected

    No fix published

  • postgresql-13 Debian:11

    Affected ranges
    • ECOSYSTEM: < 13.2-1

    Update to 13.2-1

  • 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
    Affected ranges
    • ECOSYSTEM: < 12.6-0ubuntu0.20.04.1

    Update to 12.6-0ubuntu0.20.04.1

Original sources

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