# CVE-2005-0356: Denial of service in n/a

> Remote attackers can cause denial of service by sending spoofed packets with large timestamps, disrupting TCP connections in systems with PAWS enabled.

- **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:** 31 May 2005
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-r6gj-g9qf-3c55

## What is CVE-2005-0356?

CVE-2005-0356 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 31 May 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.

## Which versions are affected by CVE-2005-0356?

It affects 76 products.


Products: Alaxala Alaxala Networks, Cisco Agent Desktop, Cisco Aironet Ap1200, Cisco Aironet Ap350, Cisco Call Manager, Cisco Ciscoworks 1105 Hosting Solution Engine, Cisco Ciscoworks 1105 Wireless Lan Solution Engine, Cisco Ciscoworks Access Control List Manager, Cisco Ciscoworks Cd1, Cisco Ciscoworks Common Management Foundation, Cisco Ciscoworks Common Services, Cisco Ciscoworks Lms, Cisco Ciscoworks Vpn Security Management Solution, Cisco Ciscoworks Windows, Cisco Ciscoworks Windows Wug, Cisco Conference Connection, Cisco Content Services Switch 11000, Cisco Content Services Switch 11050, Cisco Content Services Switch 11150, Cisco Content Services Switch 11500 and 56 more.

## How do I fix CVE-2005-0356?

No fix has been published for CVE-2005-0356 yet. Limit exposure of the affected software until one is available.

## Is CVE-2005-0356 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2005-0356 exists.

Public exploit code:

- TCP TIMESTAMPS - Denial of Service (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2005-0356 and fix it if it is affected.

What it is: CVE-2005-0356 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 31 May 2005. 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-2005-0356 exists.

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-2005-0356/ (Markdown: https://insights.sbomify.com/CVE-2005-0356/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2005-0356
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2005-0356
- OSV: https://osv.dev/vulnerability/CVE-2005-0356

---
From sbomify Insights: https://insights.sbomify.com/CVE-2005-0356/
Summaries are generated and may contain mistakes; the official description above is the record.