# CVE-2015-0255: Information disclosure in n/a

> Remote attackers can read sensitive memory or crash the X.Org Server via a crafted XkbSetGeometry request, affecting Linux desktop environments.

- **Severity:** Medium 6.4 (`AV:N/AC:L/Au:N/C:P/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:** Yes
- **Published:** 13 Feb 2015
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2015-0255, DLA-218-1, DSA-3160-1, GHSA-qf46-p69c-vqm4, MGASA-2015-0073, RHSA-2015:0797, SUSE-SU-2015:0398-1, SUSE-SU-2015:0399-1, SUSE-SU-2015:0400-1, SUSE-SU-2015:0401-1, SUSE-SU-2015:0402-1, SUSE-SU-2015:0403-1, SUSE-SU-2015:0939-1, UBUNTU-CVE-2015-0255

## What is CVE-2015-0255?

CVE-2015-0255 is a medium-severity vulnerability in Opensuse Opensuse, published on 13 Feb 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

X.Org Server (aka xserver and xorg-server) before 1.16.3 and 1.17.x before 1.17.1 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (crash) via a crafted string length value in a XkbSetGeometry request.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2015-0255?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `xorg-x11-server` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-common` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-source` | Red Hat:enterprise_linux:6::client | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-common` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-source` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-common` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-devel` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-source` | Red Hat:enterprise_linux:6::server | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xdmx` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xephyr` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xnest` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xorg` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-Xvfb` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-common` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-devel` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |
| `xorg-x11-server-source` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.15.0-26.el6_6 |

Products: Opensuse Opensuse, X.org X Server.

## How do I fix CVE-2015-0255?

Upgrade to a fixed version.

## Is CVE-2015-0255 being exploited?

There is no known exploitation of CVE-2015-0255 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Opensuse

- [CVE-2015-5957](https://insights.sbomify.com/CVE-2015-5957/): Memory corruption in n/a (critical 10.0)
- [CVE-2015-0491](https://insights.sbomify.com/CVE-2015-0491/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-2388](https://insights.sbomify.com/CVE-2008-2388/): Integer overflow in n/a (critical 10.0)
- [CVE-2010-1866](https://insights.sbomify.com/CVE-2010-1866/): Integer overflow in n/a (critical 9.8)
- [CVE-2015-0492](https://insights.sbomify.com/CVE-2015-0492/): Other in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-0255 and fix it if it is affected.

What it is: CVE-2015-0255 is a medium-severity vulnerability in Opensuse Opensuse, published on 13 Feb 2015. 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-2015-0255 in the wild and no public exploit code.

Affected product: Opensuse Opensuse. 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-2015-0255/ (Markdown: https://insights.sbomify.com/CVE-2015-0255/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-0255
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-0255
- OSV: https://osv.dev/vulnerability/CVE-2015-0255

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-0255/
Summaries are generated and may contain mistakes; the official description above is the record.
