# CVE-1999-0192: Memory corruption in n/a

> Remote attackers can gain root access via a buffer overflow in the telnet daemon triggered by the TERMCAP environment variable.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Sep 1999
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-cvh8-jv99-rgjm

## What is CVE-1999-0192?

CVE-1999-0192 is a critical memory corruption vulnerability in Redhat Linux, published on 29 Sep 1999. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer overflow in telnet daemon tgetent routing allows remote attackers to gain root access via the TERMCAP environmental variable.

## Which versions are affected by CVE-1999-0192?

It affects 2 products.


Products: Redhat Linux, Slackware Slackware Linux.

## How do I fix CVE-1999-0192?

No fix has been published for CVE-1999-0192 yet. Limit exposure of the affected software until one is available.

## Is CVE-1999-0192 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-1999-0192 exists.

Public exploit code:

- RedHat Linux 6.0 / Slackware Linux 4.0 - Termcap 'tgetent()' Local Buffer Overflow (1) (exploitdb)
- RedHat Linux 6.0 / Slackware Linux 4.0 - Termcap 'tgetent()' Local Buffer Overflow (2) (exploitdb)

## Other vulnerabilities in Redhat Linux

- [CVE-2000-1220](https://insights.sbomify.com/CVE-2000-1220/): Privilege escalation in n/a (critical 10.0)
- [CVE-2003-0248](https://insights.sbomify.com/CVE-2003-0248/): Privilege escalation in n/a (critical 10.0)
- [CVE-1999-1542](https://insights.sbomify.com/CVE-1999-1542/): Command injection in n/a (critical 10.0)
- [CVE-1999-1299](https://insights.sbomify.com/CVE-1999-1299/): Privilege escalation in n/a (critical 10.0)
- [CVE-2000-0322](https://insights.sbomify.com/CVE-2000-0322/): Command injection in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-1999-0192 and fix it if it is affected.

What it is: CVE-1999-0192 is a critical memory corruption vulnerability in Redhat Linux, published on 29 Sep 1999. 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-1999-0192 exists.

Affected product: Redhat 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-1999-0192/ (Markdown: https://insights.sbomify.com/CVE-1999-0192/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-1999-0192
- NVD: https://nvd.nist.gov/vuln/detail/CVE-1999-0192
- OSV: https://osv.dev/vulnerability/CVE-1999-0192

---
From sbomify Insights: https://insights.sbomify.com/CVE-1999-0192/
Summaries are generated and may contain mistakes; the official description above is the record.