# CVE-2014-4027: Information disclosure in n/a

> Local attackers with SCSI initiator access can read sensitive memory from the Linux kernel's ramdisk target driver due to improper initialization.

- **Severity:** Low 2.3 (`AV:A/AC:M/Au:S/C:P/I:N/A:N`)
- **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:** 23 Jun 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-4027, GHSA-j649-2854-8rqg, UBUNTU-CVE-2014-4027

## What is CVE-2014-4027?

CVE-2014-4027 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 23 Jun 2014. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The rd_build_device_space function in drivers/target/target_core_rd.c in the Linux kernel before 3.14 does not properly initialize a certain data structure, which allows local users to obtain sensitive information from ramdisk_mcp memory by leveraging access to a SCSI initiator.

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

## Which versions are affected by CVE-2014-4027?

It affects 26 products.


Products: Canonical Ubuntu Linux, F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System, F5 Big-Ip Edge Gateway, F5 Big-Ip Global Traffic Manager, F5 Big-Ip Link Controller, F5 Big-Ip Local Traffic Manager, F5 Big-Ip Policy Enforcement Manager, F5 Big-Ip Protocol Security Module, F5 Big-Ip Wan Optimization Manager, F5 Big-Ip Webaccelerator, F5 Big-Iq Application Delivery Controller, F5 Big-Iq Cloud, F5 Big-Iq Device, F5 Big-Iq Security, F5 Enterprise Manager and 6 more.

## How do I fix CVE-2014-4027?

Upgrade to a fixed version.

## Is CVE-2014-4027 being exploited?

There is no known exploitation of CVE-2014-4027 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-2014-4027 and fix it if it is affected.

What it is: CVE-2014-4027 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 23 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-2014-4027 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-2014-4027/ (Markdown: https://insights.sbomify.com/CVE-2014-4027/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-4027
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-4027
- OSV: https://osv.dev/vulnerability/CVE-2014-4027

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-4027/
Summaries are generated and may contain mistakes; the official description above is the record.