# CVE-2014-5146: Denial of service in n/a

> A local HVM guest can cause a denial of service by consuming vCPUs through non-preemptible MMU operations in Xen when Hardware Assisted Paging is enabled.

- **Severity:** Medium 4.7 (`AV:L/AC:M/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Aug 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-5146, GHSA-f96q-c56j-h692

## What is CVE-2014-5146?

CVE-2014-5146 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 22 Aug 2014. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5149.

Weakness: CWE-399

## Which versions are affected by CVE-2014-5146?

It affects 2 products.


Products: Opensuse Opensuse, Xen Xen.

## How do I fix CVE-2014-5146?

Apply the vendor's patch.

## Is CVE-2014-5146 being exploited?

There is no known exploitation of CVE-2014-5146 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-2014-5146 and fix it if it is affected.

What it is: CVE-2014-5146 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 22 Aug 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2014-5146 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-2014-5146/ (Markdown: https://insights.sbomify.com/CVE-2014-5146/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-5146
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-5146
- OSV: https://osv.dev/vulnerability/CVE-2014-5146

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-5146/
Summaries are generated and may contain mistakes; the official description above is the record.