# CVE-2009-0922: Denial of service in n/a

> Remote authenticated users can crash the PostgreSQL database by triggering a failure in localized error message encoding conversion.

- **Severity:** Medium 4.0 (`AV:N/AC:L/Au:S/C:N/I:N/A:P`)
- **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:** 17 Mar 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-fj47-2vxw-632j

## What is CVE-2009-0922?

CVE-2009-0922 is a medium-severity denial of service vulnerability in Postgresql Postgresql, published on 17 Mar 2009. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

PostgreSQL before 8.3.7, 8.2.13, 8.1.17, 8.0.21, and 7.4.25 allows remote authenticated users to cause a denial of service (stack consumption and crash) by triggering a failure in the conversion of a localized error message to a client-specified encoding, as demonstrated using mismatched encoding conversion requests.

Weakness: CWE-399

## Which versions are affected by CVE-2009-0922?

It affects 1 product.


Products: Postgresql Postgresql.

## How do I fix CVE-2009-0922?

Upgrade to a fixed version.

## Is CVE-2009-0922 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0922 exists.

Public exploit code:

- PostgreSQL 8.3.6 - Conversion Encoding Remote Denial of Service (exploitdb)

## 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-2009-0922 and fix it if it is affected.

What it is: CVE-2009-0922 is a medium-severity denial of service vulnerability in Postgresql Postgresql, published on 17 Mar 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0922 exists.

Affected product: Postgresql Postgresql. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2009-0922/ (Markdown: https://insights.sbomify.com/CVE-2009-0922/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-0922
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-0922
- OSV: https://osv.dev/vulnerability/CVE-2009-0922

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-0922/
Summaries are generated and may contain mistakes; the official description above is the record.