# CVE-1999-0672: Memory corruption in n/a

> A buffer overflow in the Fujitsu Chocoa IRC client allows remote attackers to execute arbitrary code via malicious IRC channel topics.

- **Severity:** Medium 5.1 (`AV:N/AC:H/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Oct 2000
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-2hg6-925r-qp9r

## What is CVE-1999-0672?

CVE-1999-0672 is a medium-severity memory corruption vulnerability in n/a, published on 13 Oct 2000. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Buffer overflow in Fujitsu Chocoa IRC client via IRC channel topics.

## Which versions are affected by CVE-1999-0672?

It affects 1 product.


Products: Fujitsu Chocoa.

## How do I fix CVE-1999-0672?

No fix has been published for CVE-1999-0672 yet. Limit exposure of the affected software until one is available.

## Is CVE-1999-0672 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-1999-0672 exists.

Public exploit code:

- Fujitsu Chocoa 1.0 beta7R - 'Topic' Remote Buffer Overflow (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-1999-0672 and fix it if it is affected.

What it is: CVE-1999-0672 is a medium-severity memory corruption vulnerability in n/a, published on 13 Oct 2000. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-1999-0672 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-1999-0672/ (Markdown: https://insights.sbomify.com/CVE-1999-0672/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-1999-0672
- NVD: https://nvd.nist.gov/vuln/detail/CVE-1999-0672
- OSV: https://osv.dev/vulnerability/CVE-1999-0672

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From sbomify Insights: https://insights.sbomify.com/CVE-1999-0672/
Summaries are generated and may contain mistakes; the official description above is the record.