# CVE-1999-0345: Denial of service in n/a

> Attackers can cause a denial of service on Windows 95 and NT systems by sending malformed ICMP packets.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Feb 2000
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-pwf4-g7fv-h2w4

## What is CVE-1999-0345?

CVE-1999-0345 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 4 Feb 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Jolt ICMP attack causes a denial of service in Windows 95 and Windows NT systems.

## Which versions are affected by CVE-1999-0345?

It affects 7 products.


Products: Freebsd Freebsd, Ibm Aix, Ibm Sng, Sco Internet Faststart, Sco Open Desktop, Sco Openserver, Sun Sunos.

## How do I fix CVE-1999-0345?

No fix has been published for CVE-1999-0345 yet. Limit exposure of the affected software until one is available.

## Is CVE-1999-0345 being exploited?

There is no known exploitation of CVE-1999-0345 in the wild and no public exploit code.

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-1999-0345 and fix it if it is affected.

What it is: CVE-1999-0345 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 4 Feb 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-1999-0345 in the wild and no public exploit code.

Affected product: Freebsd Freebsd. 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-1999-0345/ (Markdown: https://insights.sbomify.com/CVE-1999-0345/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-1999-0345
- NVD: https://nvd.nist.gov/vuln/detail/CVE-1999-0345
- OSV: https://osv.dev/vulnerability/CVE-1999-0345

---
From sbomify Insights: https://insights.sbomify.com/CVE-1999-0345/
Summaries are generated and may contain mistakes; the official description above is the record.