# CVE-2007-1003: Integer overflow in n/a

> Remote authenticated users can execute arbitrary code via an integer overflow in the X.Org X11 server's XC-MISC extension.

- **Severity:** Critical 9.0 (`AV:N/AC:L/Au:S/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Apr 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2007-1003, GHSA-qh64-49gx-35pg, RHSA-2007:0127

## What is CVE-2007-1003?

CVE-2007-1003 is a critical vulnerability in n/a, published on 6 Apr 2007. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Integer overflow in ALLOCATE_LOCAL in the ProcXCMiscGetXIDList function in the XC-MISC extension in the X.Org X11 server (xserver) 7.1-1.1.0, and other versions before 20070403, allows remote authenticated users to execute arbitrary code via a large expression, which results in memory corruption.

## Which versions are affected by CVE-2007-1003?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `xorg-x11-server` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:5::client | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-sdk` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |
| `xorg-x11-server-sdk` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.1-48.13.0.1.el5 |

Products: X.org X11.

## How do I fix CVE-2007-1003?

Upgrade to a fixed version.

## Is CVE-2007-1003 being exploited?

There is no known exploitation of CVE-2007-1003 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2012-2118](https://insights.sbomify.com/CVE-2012-2118/): Memory corruption in n/a (critical 10.0)
- [CVE-1999-0526](https://insights.sbomify.com/CVE-1999-0526/): Misconfiguration in n/a (critical 10.0)
- [CVE-2014-8092](https://insights.sbomify.com/CVE-2014-8092/): Integer overflow in n/a (medium 6.5)
- [CVE-2014-8093](https://insights.sbomify.com/CVE-2014-8093/): Integer overflow in n/a (medium 6.5)
- [CVE-2014-8097](https://insights.sbomify.com/CVE-2014-8097/): Memory corruption in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-1003 and fix it if it is affected.

What it is: CVE-2007-1003 is a critical vulnerability in n/a, published on 6 Apr 2007. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-1003 in the wild and no public exploit code.

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-2007-1003/ (Markdown: https://insights.sbomify.com/CVE-2007-1003/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-1003
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-1003
- OSV: https://osv.dev/vulnerability/CVE-2007-1003

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-1003/
Summaries are generated and may contain mistakes; the official description above is the record.