# CVE-2006-4303: Race condition in n/a

> Remote attackers can cause denial of service in Sun Solaris 10 via a race condition in network API routines, leading to high CPU consumption.

- **Severity:** Low 2.6 (`AV:N/AC:H/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:** 23 Aug 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-7964-4h6j-g639

## What is CVE-2006-4303?

CVE-2006-4303 is a low-severity vulnerability in Sun Solaris, published on 23 Aug 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Race condition in (1) libnsl and (2) TLI/XTI API routines in Sun Solaris 10 allows remote attackers to cause a denial of service ("tight loop" and CPU consumption for listener applications) via unknown vectors related to TCP fusion (do_tcp_fusion).

## Which versions are affected by CVE-2006-4303?

It affects 1 product.


Products: Sun Solaris.

## How do I fix CVE-2006-4303?

No fix has been published for CVE-2006-4303 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-4303 being exploited?

There is no known exploitation of CVE-2006-4303 in the wild and no public exploit code.

## Other vulnerabilities in Sun Solaris

- [CVE-2008-3869](https://insights.sbomify.com/CVE-2008-3869/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-3870](https://insights.sbomify.com/CVE-2008-3870/): Integer overflow in n/a (critical 10.0)
- [CVE-2008-4556](https://insights.sbomify.com/CVE-2008-4556/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-3093](https://insights.sbomify.com/CVE-2007-3093/): Code injection in n/a (critical 10.0)
- [CVE-2003-1081](https://insights.sbomify.com/CVE-2003-1081/): Path traversal in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-4303 and fix it if it is affected.

What it is: CVE-2006-4303 is a low-severity vulnerability in Sun Solaris, published on 23 Aug 2006. 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-2006-4303 in the wild and no public exploit code.

Affected product: Sun Solaris. 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-2006-4303/ (Markdown: https://insights.sbomify.com/CVE-2006-4303/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-4303
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-4303
- OSV: https://osv.dev/vulnerability/CVE-2006-4303

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-4303/
Summaries are generated and may contain mistakes; the official description above is the record.