# CVE-2014-8134: Security feature bypass in n/a

> Guest OS users can bypass ASLR protection in KVM guest kernels by reading a 16-bit value via a crafted application.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 12 Dec 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-8134, GHSA-m3qc-7rv2-p8pm, UBUNTU-CVE-2014-8134

## What is CVE-2014-8134?

CVE-2014-8134 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 12 Dec 2014. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels, which makes it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value.

## Which versions are affected by CVE-2014-8134?

It affects 6 products.


Products: Canonical Ubuntu Linux, Linux kernel, Opensuse Evergreen, Opensuse Opensuse, Oracle Linux, Suse Suse Linux Enterprise Server.

## How do I fix CVE-2014-8134?

Apply the vendor's patch.

## Is CVE-2014-8134 being exploited?

There is no known exploitation of CVE-2014-8134 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-8134 and fix it if it is affected.

What it is: CVE-2014-8134 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 12 Dec 2014. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2014-8134 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2014-8134/ (Markdown: https://insights.sbomify.com/CVE-2014-8134/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-8134
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-8134
- OSV: https://osv.dev/vulnerability/CVE-2014-8134

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-8134/
Summaries are generated and may contain mistakes; the official description above is the record.