# CVE-2021-30313: Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

> A race condition in wired connectivity allows use-after-free, potentially enabling code execution or privilege escalation on Qualcomm Snapdragon devices.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Jan 2022
- **Updated:** 3 Aug 2024
- **Also known as:** 2878995, A-178720043, GHSA-pqcw-x89x-vfmm, PUB-A-178720043

## What is CVE-2021-30313?

CVE-2021-30313 is a medium-severity use after free vulnerability in Qualcomm Apq8096au Firmware, published on 13 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Use after free condition can occur in wired connectivity due to a race condition while creating and deleting folders in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-416 (Use After Free), CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2021-30313?

It affects 180 products.


Products: Qualcomm Apq8096au Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Ar9380 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Ipq4018 Firmware, Qualcomm Ipq4019 Firmware, Qualcomm Ipq4028 Firmware, Qualcomm Ipq4029 Firmware, Qualcomm Ipq5010 Firmware, Qualcomm Ipq5018 Firmware, Qualcomm Ipq5028 Firmware, Qualcomm Ipq6000 Firmware, Qualcomm Ipq6010 Firmware, Qualcomm Ipq6018 Firmware, Qualcomm Ipq6028 Firmware, Qualcomm Ipq8064 Firmware, Qualcomm Ipq8065 Firmware and 160 more.

## How do I fix CVE-2021-30313?

Apply the vendor's patch.

## Is CVE-2021-30313 being exploited?

There is no known exploitation of CVE-2021-30313 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Apq8096au Firmware

- [CVE-2019-14045](https://insights.sbomify.com/CVE-2019-14045/): Memory corruption in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Mobile (critical 9.8)
- [CVE-2017-14911](https://insights.sbomify.com/CVE-2017-14911/): Auth bypass in Snapdragon IoT, Snapdragon Mobile, Snapdragon Automobile (critical 9.8)
- [CVE-2020-11126](https://insights.sbomify.com/CVE-2020-11126/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking (critical 9.1)
- [CVE-2022-33243](https://insights.sbomify.com/CVE-2022-33243/): Improper access control in Qualcomm IPC (high 8.4)
- [CVE-2022-22063](https://insights.sbomify.com/CVE-2022-22063/): Memory corruption in Core (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30313 and fix it if it is affected.

What it is: CVE-2021-30313 is a medium-severity use after free vulnerability in Qualcomm Apq8096au Firmware, published on 13 Jan 2022. 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-2021-30313 in the wild and no public exploit code.

Affected product: Qualcomm Apq8096au 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-2021-30313/ (Markdown: https://insights.sbomify.com/CVE-2021-30313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30313
- OSV: https://osv.dev/vulnerability/CVE-2021-30313

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30313/
Summaries are generated and may contain mistakes; the official description above is the record.