CVE-2014-4021 Information disclosure in n/a
Low 2.7
Published
Updated
Check this codebase for CVE-2014-4021 and fix it if it is affected.
What it is: CVE-2014-4021 is a low-severity vulnerability in Xen Xen, published on 18 Jun 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-2014-4021 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-2014-4021/ (Markdown: https://insights.sbomify.com/CVE-2014-4021/index.md)
Local guest OS users can obtain sensitive information from the Xen hypervisor due to improper memory page cleaning.
- 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
What is CVE-2014-4021?
CVE-2014-4021 is a low-severity vulnerability in Xen Xen, published on 18 Jun 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.
Weakness: CWE-119
Which versions are affected by CVE-2014-4021?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2014-4021?
Apply the vendor's patch.
Is CVE-2014-4021 being exploited?
There is no known exploitation of CVE-2014-4021 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2014-4021, GHSA-h82g-hrcm-j7gq, UBUNTU-CVE-2014-4021.