# CVE-2002-1642: Denial of service in n/a

> Local users can delete transaction log data via VACUUM, causing data loss and denial of service in PostgreSQL.

- **Severity:** High 7.2 (`AV:L/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Mar 2005
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-262h-5vgm-7f9h

## What is CVE-2002-1642?

CVE-2002-1642 is a high-severity denial of service vulnerability in Postgresql Postgresql, published on 28 Mar 2005. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

PostgreSQL 7.2.1 and 7.2.2 allows local users to delete transaction log (pg_clog) data and cause a denial of service (data loss) via the VACUUM command.

## Which versions are affected by CVE-2002-1642?

It affects 1 product.


Products: Postgresql Postgresql.

## How do I fix CVE-2002-1642?

No fix has been published for CVE-2002-1642 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-1642 being exploited?

There is no known exploitation of CVE-2002-1642 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-2002-1642 and fix it if it is affected.

What it is: CVE-2002-1642 is a high-severity denial of service vulnerability in Postgresql Postgresql, published on 28 Mar 2005. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2002-1642 in the wild and no public exploit code.

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-2002-1642/ (Markdown: https://insights.sbomify.com/CVE-2002-1642/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-1642
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-1642
- OSV: https://osv.dev/vulnerability/CVE-2002-1642

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-1642/
Summaries are generated and may contain mistakes; the official description above is the record.