# CVE-2018-11947: Use after free in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

> A double-free vulnerability in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or cause denial of service during driver unloading.

- **Severity:** Medium 5.5 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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:** No
- **Published:** 14 Jun 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-98g4-4gpj-7rqq

## What is CVE-2018-11947?

CVE-2018-11947 is a medium-severity use after free vulnerability in Qualcomm Ipq8064 Firmware, published on 14 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The txrx stats req might be double freed in the pdev detach when the host driver is unloading in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ8064, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6574AU, QCA9377, QCA9379, QCA9558, QCA9880, QCA9886, QCA9980, QCS405, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2018-11947?

It affects 42 products.


Products: Qualcomm Ipq8064 Firmware, Qualcomm Mdm9150 Firmware, Qualcomm Mdm9206 Firmware, Qualcomm Mdm9607 Firmware, Qualcomm Mdm9640 Firmware, Qualcomm Mdm9650 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca9377 Firmware, Qualcomm Qca9379 Firmware, Qualcomm Qca9558 Firmware, Qualcomm Qca9880 Firmware, Qualcomm Qca9886 Firmware, Qualcomm Qca9980 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Qcs605 Firmware, Qualcomm Sd 205 Firmware, Qualcomm Sd 210 Firmware, Qualcomm Sd 212 Firmware and 22 more.

## How do I fix CVE-2018-11947?

No fix has been published for CVE-2018-11947 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-11947 being exploited?

There is no known exploitation of CVE-2018-11947 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-11947 and fix it if it is affected.

What it is: CVE-2018-11947 is a medium-severity use after free vulnerability in Qualcomm Ipq8064 Firmware, published on 14 Jun 2019. 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-2018-11947 in the wild and no public exploit code.

Affected product: Qualcomm Ipq8064 Firmware. 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-2018-11947/ (Markdown: https://insights.sbomify.com/CVE-2018-11947/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-11947
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-11947
- OSV: https://osv.dev/vulnerability/CVE-2018-11947

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-11947/
Summaries are generated and may contain mistakes; the official description above is the record.