# CVE-2008-3933: Denial of service in n/a

> Attackers can crash Wireshark by sending crafted packets with malformed zlib-compressed data, requiring user interaction to capture or open the traffic.

- **Severity:** Low 3.3 (`AV:A/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 4 Sep 2008
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2008-3933, GHSA-jwfr-jmg6-pgjf

## What is CVE-2008-3933?

CVE-2008-3933 is a low-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Sep 2008. 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

Wireshark (formerly Ethereal) 0.10.14 through 1.0.2 allows attackers to cause a denial of service (crash) via a packet with crafted zlib-compressed data that triggers an invalid read in the tvb_uncompress function.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2008-3933?

It affects 1 product.


Products: Wireshark Wireshark.

## How do I fix CVE-2008-3933?

Upgrade to a fixed version.

## Is CVE-2008-3933 being exploited?

There is no known exploitation of CVE-2008-3933 in the wild and no public exploit code.

## Other vulnerabilities in Wireshark Wireshark

- [CVE-2011-0444](https://insights.sbomify.com/CVE-2011-0444/): Memory corruption in n/a (critical 10.0)
- [CVE-2010-2994](https://insights.sbomify.com/CVE-2010-2994/): Memory corruption in n/a (critical 10.0)
- [CVE-2010-2995](https://insights.sbomify.com/CVE-2010-2995/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-1266](https://insights.sbomify.com/CVE-2009-1266/): Other in n/a (critical 10.0)
- [CVE-2009-1210](https://insights.sbomify.com/CVE-2009-1210/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-3933 and fix it if it is affected.

What it is: CVE-2008-3933 is a low-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Sep 2008. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2008-3933 in the wild and no public exploit code.

Affected product: Wireshark Wireshark. 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-2008-3933/ (Markdown: https://insights.sbomify.com/CVE-2008-3933/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-3933
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-3933
- OSV: https://osv.dev/vulnerability/CVE-2008-3933

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-3933/
Summaries are generated and may contain mistakes; the official description above is the record.