CVE-2021-32028 Information disclosure in postgresql
An authenticated user can read arbitrary server memory bytes via a crafted INSERT ON CONFLICT command, compromising data confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-32028?
CVE-2021-32028 is a medium-severity vulnerability in Postgresql Postgresql, published on 11 Oct 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. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
Weakness: CWE-200
Which versions are affected by CVE-2021-32028?
1 open source package ship an affected version, including postgresql. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
postgresql Bitnami | From 9.6.0 | 9.6.22, 10.17.0, 11.12.0, 12.7.0, 13.3.0 |
Products include Postgresql Postgresql.
How do I fix CVE-2021-32028?
Upgrade postgresql to a fixed version for your release line: 9.6.22, 10.17.0, 11.12.0 or 12.7.0.
Is CVE-2021-32028 being exploited?
There is no known exploitation of CVE-2021-32028 in the wild and no public exploit code.
Other vulnerabilities in Postgresql Postgresql
Sources
Also known as ALPINE-CVE-2021-32028, BIT-postgresql-2021-32028, CLEANSTART-2026-VM56889, DEBIAN-CVE-2021-32028, ECHO-6788-82b2-dd38, GHSA-fr87-j862-8rwm and 3 more.