# CVE-2014-1950: Use after free in n/a

> Local attackers with management access can trigger a use-after-free in Xen to cause denial of service or potentially escalate privileges.

- **Severity:** Medium 4.6 (`AV:L/AC:L/Au:N/C:P/I:P/A:P`)
- **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:** 14 Feb 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-1950, GHSA-98mj-mwpf-cj8q

## What is CVE-2014-1950?

CVE-2014-1950 is a medium-severity use after free vulnerability in Xen Xen, published on 14 Feb 2014. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors.

Weakness: CWE-399

## Which versions are affected by CVE-2014-1950?

It affects 1 product.


Products: Xen Xen.

## How do I fix CVE-2014-1950?

Apply the vendor's patch.

## Is CVE-2014-1950 being exploited?

There is no known exploitation of CVE-2014-1950 in the wild and no public exploit code.

## Other vulnerabilities in Xen Xen

- [CVE-2017-10912](https://insights.sbomify.com/CVE-2017-10912/): Privilege escalation in n/a (critical 10.0)
- [CVE-2017-10918](https://insights.sbomify.com/CVE-2017-10918/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-10920](https://insights.sbomify.com/CVE-2017-10920/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-10921](https://insights.sbomify.com/CVE-2017-10921/): Memory corruption in n/a (critical 10.0)
- [CVE-2025-27466](https://insights.sbomify.com/CVE-2025-27466/): Mutiple vulnerabilities in the Viridian interface (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-1950 and fix it if it is affected.

What it is: CVE-2014-1950 is a medium-severity use after free vulnerability in Xen Xen, published on 14 Feb 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-2014-1950 in the wild and no public exploit code.

Affected product: Xen Xen. 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-2014-1950/ (Markdown: https://insights.sbomify.com/CVE-2014-1950/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-1950
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-1950
- OSV: https://osv.dev/vulnerability/CVE-2014-1950

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-1950/
Summaries are generated and may contain mistakes; the official description above is the record.