# CVE-2021-32029: Information disclosure in postgresql

> An authenticated user can read arbitrary server memory bytes via a crafted UPDATE RETURNING command, compromising data confidentiality.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Oct 2021
- **Updated:** 3 Aug 2024
- **Also known as:** ALPINE-CVE-2021-32029, BIT-postgresql-2021-32029, CLEANSTART-2026-PN50484, DEBIAN-CVE-2021-32029, ECHO-1646-48bd-b81a, GHSA-f47v-jjrp-x56x, JLSEC-2026-33, UBUNTU-CVE-2021-32029

## What is CVE-2021-32029?

CVE-2021-32029 is a medium-severity vulnerability in Postgresql Postgresql, published on 8 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 UPDATE ... RETURNING 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-125 (Out-of-bounds Read), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2021-32029?

1 open source package ship an affected version, including postgresql. It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `postgresql` | Bitnami | From 11.0.0 | 11.12.0, 12.7.0, 13.3.0 |

Products: Postgresql Postgresql, Redhat Jboss Enterprise Application Platform.

## How do I fix CVE-2021-32029?

Upgrade postgresql to a fixed version for your release line: 11.12.0, 12.7.0 or 13.3.0.

## Is CVE-2021-32029 being exploited?

There is no known exploitation of CVE-2021-32029 in the wild and no public exploit code.

## Other vulnerabilities in Postgresql Postgresql

- [CVE-2013-1902](https://insights.sbomify.com/CVE-2013-1902/): Information disclosure in n/a (critical 10.0)
- [CVE-2013-1903](https://insights.sbomify.com/CVE-2013-1903/): Information disclosure in n/a (critical 10.0)
- [CVE-2007-3279](https://insights.sbomify.com/CVE-2007-3279/): Privilege escalation in n/a (critical 10.0)
- [CVE-2002-1399](https://insights.sbomify.com/CVE-2002-1399/): Integer overflow in n/a (critical 10.0)
- [CVE-2016-3065](https://insights.sbomify.com/CVE-2016-3065/): Information disclosure in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32029 and fix it if it is affected.

What it is: CVE-2021-32029 is a medium-severity vulnerability in Postgresql Postgresql, published on 8 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-32029 in the wild and no public exploit code.

Affected packages and fixed versions:
- postgresql (Bitnami): affected from 11.0.0; fixed in 11.12.0, 12.7.0, 13.3.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-32029/ (Markdown: https://insights.sbomify.com/CVE-2021-32029/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32029
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32029
- OSV: https://osv.dev/vulnerability/CVE-2021-32029

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-32029/
Summaries are generated and may contain mistakes; the official description above is the record.