CVE-2021-20229 Incorrect Authorization in PostgreSQL

What is CVE-2021-20229?

CVE-2021-20229 is a medium-severity missing authorization vulnerability in Fedoraproject Fedora, published on 23 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in PostgreSQL in versions before 13.2. This flaw allows a user with SELECT privilege on one column to craft a special query that returns all columns of the table. The highest threat from this vulnerability is to confidentiality.

Weakness: CWE-863

Which versions are affected by CVE-2021-20229?

1 open source package ship an affected version, including postgresql. It affects 4 products.

Products include Fedoraproject Fedora, Postgresql Postgresql, Redhat Enterprise Linux, Redhat Software Collections.

How do I fix CVE-2021-20229?

Upgrade postgresql to 13.2.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-20229 being exploited?

There is no known exploitation of CVE-2021-20229 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2021-20229, BIT-postgresql-2021-20229, CLEANSTART-2026-HC84403, DEBIAN-CVE-2021-20229, ECHO-5fd3-4f65-eae8, GHSA-43rr-wcj9-h45w and 1 more.