# CVE-2016-1714: Memory corruption in n/a

> Guest OS users with CAP_SYS_RAWIO can trigger out-of-bounds access in QEMU firmware config, causing crashes or arbitrary code execution.

- **Severity:** High 8.1 (`CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Apr 2016
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2016-1714, GHSA-fjx4-mcpx-mwq6, RHSA-2016:0081, RHSA-2016:0082, RHSA-2016:0083, RHSA-2016:0085, UBUNTU-CVE-2016-1714

## What is CVE-2016-1714?

CVE-2016-1714 is a high-severity memory corruption vulnerability in Oracle Linux, published on 7 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-1714?

It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `qemu-guest-agent` | Red Hat:enterprise_linux:6::client | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-img` | Red Hat:enterprise_linux:6::client | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm` | Red Hat:enterprise_linux:6::client | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:6::client | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-guest-agent` | Red Hat:enterprise_linux:6::computenode | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-img` | Red Hat:enterprise_linux:6::computenode | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm` | Red Hat:enterprise_linux:6::computenode | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:6::computenode | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-img-rhev` | Red Hat:enterprise_linux:6::hypervisor | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-rhev` | Red Hat:enterprise_linux:6::hypervisor | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-rhev-debuginfo` | Red Hat:enterprise_linux:6::hypervisor | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-rhev-tools` | Red Hat:enterprise_linux:6::hypervisor | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-guest-agent` | Red Hat:enterprise_linux:6::server | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-img` | Red Hat:enterprise_linux:6::server | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm` | Red Hat:enterprise_linux:6::server | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:6::server | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-guest-agent` | Red Hat:enterprise_linux:6::workstation | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-img` | Red Hat:enterprise_linux:6::workstation | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm` | Red Hat:enterprise_linux:6::workstation | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:6::workstation | All versions | 2:0.12.1.2-2.479.el6_7.4 |
| `libcacard` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `libcacard-devel` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `libcacard-tools` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-img` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-common` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:7::client | All versions | 10:1.5.3-105.el7_2.3 |
| `libcacard` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `libcacard-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `libcacard-tools` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-img` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-common` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |
| `qemu-kvm-tools` | Red Hat:enterprise_linux:7::computenode | All versions | 10:1.5.3-105.el7_2.3 |

Products: Oracle Linux, Qemu Qemu, Redhat Openstack.

## How do I fix CVE-2016-1714?

Apply the vendor's patch.

## Is CVE-2016-1714 being exploited?

There is no known exploitation of CVE-2016-1714 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Linux

- [CVE-2015-5287](https://insights.sbomify.com/CVE-2015-5287/): Red Hat Automatic Bug Reporting Tool Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2016-5408](https://insights.sbomify.com/CVE-2016-5408/): Memory corruption in n/a (critical 9.8)
- [CVE-2015-3812](https://insights.sbomify.com/CVE-2015-3812/): Denial of service in n/a (high 7.8)
- [CVE-2015-2328](https://insights.sbomify.com/CVE-2015-2328/): Denial of service in n/a (high 7.5)
- [CVE-2015-8385](https://insights.sbomify.com/CVE-2015-8385/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1714 and fix it if it is affected.

What it is: CVE-2016-1714 is a high-severity memory corruption vulnerability in Oracle Linux, published on 7 Apr 2016. 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-2016-1714 in the wild and no public exploit code.

Affected product: Oracle 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-2016-1714/ (Markdown: https://insights.sbomify.com/CVE-2016-1714/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1714
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1714
- OSV: https://osv.dev/vulnerability/CVE-2016-1714

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1714/
Summaries are generated and may contain mistakes; the official description above is the record.