# CVE-2003-0783: Memory corruption in n/a

> Local attackers can exploit buffer overflows in hztty to gain root privileges and execute arbitrary code.

- **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:** Yes
- **Published:** 23 Sep 2003
- **Updated:** 8 Aug 2024
- **Also known as:** DSA-385, GHSA-w7gg-86h2-3p69

## What is CVE-2003-0783?

CVE-2003-0783 is a high-severity memory corruption vulnerability in n/a, published on 23 Sep 2003. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Multiple buffer overflows in hztty 2.0 allow local users to gain root privileges.

## Which versions are affected by CVE-2003-0783?

It affects 1 product.


Products: Yongguang Zhang Hztty.

## How do I fix CVE-2003-0783?

Apply the vendor's patch.

## Is CVE-2003-0783 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0783 exists.

Public exploit code:

- hztty 2.0 (RedHat 9.0) - Local Privilege Escalation (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2005-0019](https://insights.sbomify.com/CVE-2005-0019/): Command injection in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0783 and fix it if it is affected.

What it is: CVE-2003-0783 is a high-severity memory corruption vulnerability in n/a, published on 23 Sep 2003. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0783 exists.

Affected product: n/a. 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-2003-0783/ (Markdown: https://insights.sbomify.com/CVE-2003-0783/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0783
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0783
- OSV: https://osv.dev/vulnerability/CVE-2003-0783

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From sbomify Insights: https://insights.sbomify.com/CVE-2003-0783/
Summaries are generated and may contain mistakes; the official description above is the record.