# CVE-2007-4642: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause denial of service via buffer overflows in Doomsday game engine network handling.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Aug 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-4853-vw97-h7j3

## What is CVE-2007-4642?

CVE-2007-4642 is a critical memory corruption vulnerability in n/a, published on 31 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple buffer overflows in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allow remote attackers to execute arbitrary code via a long chat (PKT_CHAT) message that is not properly handled by the (1) D_NetPlayerEvent function in d_net.c or the (2) Msg_Write function in net_msg.c, or (3) many commands that are not properly handled by the NetSv_ReadCommands function in d_netsv.c; or (4) cause a denial of service (daemon crash) via a chat (PKT_CHAT) message without a final '\0' character.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2007-4642?

It affects 1 product.


Products: Doomsday Doomsday.

## How do I fix CVE-2007-4642?

No fix has been published for CVE-2007-4642 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-4642 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4642 exists.

Public exploit code:

- Doomsday Engine 1.8.6/1.9 - Multiple Remote Vulnerabilities (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2007-4644](https://insights.sbomify.com/CVE-2007-4644/): Code injection in n/a (high 7.5)
- [CVE-2006-1618](https://insights.sbomify.com/CVE-2006-1618/): Code injection in n/a (high 7.5)
- [CVE-2007-4643](https://insights.sbomify.com/CVE-2007-4643/): Integer overflow in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4642 and fix it if it is affected.

What it is: CVE-2007-4642 is a critical memory corruption vulnerability in n/a, published on 31 Aug 2007. 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-2007-4642 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-2007-4642/ (Markdown: https://insights.sbomify.com/CVE-2007-4642/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4642
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4642
- OSV: https://osv.dev/vulnerability/CVE-2007-4642

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4642/
Summaries are generated and may contain mistakes; the official description above is the record.