# CVE-2002-0083: Integer overflow in n/a

> Local users or remote malicious servers can gain privileges via an off-by-one error in OpenSSH channel code.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jun 2002
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-w9fg-77jf-ghf9

## What is CVE-2002-0083?

CVE-2002-0083 is a critical vulnerability in Conectiva Linux, published on 25 Jun 2002. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Off-by-one error in the channel code of OpenSSH 2.0 through 3.0.2 allows local users or remote malicious servers to gain privileges.

Weakness: CWE-193 (Off-by-one Error)

## Which versions are affected by CVE-2002-0083?

It affects 11 products.


Products: Conectiva Linux, Engardelinux Secure Linux, Immunix Immunix, Mandrakesoft Mandrake Linux, Mandrakesoft Mandrake Linux Corporate Server, Mandrakesoft Mandrake Single Network Firewall, OpenSSH, Openpkg Openpkg, Redhat Linux, Suse Suse Linux, Trustix Secure Linux.

## How do I fix CVE-2002-0083?

No fix has been published for CVE-2002-0083 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-0083 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2002-0083 exists.

Public exploit code:

- OpenSSH 2.x/3.0.1/3.0.2 - Channel Code Off-by-One (exploitdb)

## Other vulnerabilities in Conectiva Linux

- [CVE-2005-3625](https://insights.sbomify.com/CVE-2005-3625/): Denial of service in n/a (critical 10.0)
- [CVE-2004-0882](https://insights.sbomify.com/CVE-2004-0882/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0902](https://insights.sbomify.com/CVE-2004-0902/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0903](https://insights.sbomify.com/CVE-2004-0903/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0904](https://insights.sbomify.com/CVE-2004-0904/): Integer overflow in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-0083 and fix it if it is affected.

What it is: CVE-2002-0083 is a critical vulnerability in Conectiva Linux, published on 25 Jun 2002. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2002-0083 exists.

Affected product: Conectiva Linux. 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-2002-0083/ (Markdown: https://insights.sbomify.com/CVE-2002-0083/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-0083
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-0083
- OSV: https://osv.dev/vulnerability/CVE-2002-0083

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-0083/
Summaries are generated and may contain mistakes; the official description above is the record.