# CVE-2021-35089: Memory corruption in Snapdragon Auto

> A buffer overflow in Snapdragon Auto firmware allows attackers to execute arbitrary code or escalate privileges via malformed input.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/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:** No
- **Published:** 1 Apr 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-p5xp-6894-jmvx

## What is CVE-2021-35089?

CVE-2021-35089 is a high-severity memory corruption vulnerability in Qualcomm Qca6574au Firmware, published on 1 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Possible buffer overflow due to lack of input IB amount validation while processing the user command in Snapdragon Auto

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-35089?

It affects 3 products.


Products: Qualcomm Qca6574au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Sa8155p Firmware.

## How do I fix CVE-2021-35089?

No fix has been published for CVE-2021-35089 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-35089 being exploited?

There is no known exploitation of CVE-2021-35089 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Qca6574au Firmware

- [CVE-2022-22102](https://insights.sbomify.com/CVE-2022-22102/): Memory corruption in Snapdragon Auto (high 8.4)
- [CVE-2023-22384](https://insights.sbomify.com/CVE-2023-22384/): Buffer Copy Without Checking Size of Input in VR Service (medium 6.7)
- [CVE-2024-49830](https://insights.sbomify.com/CVE-2024-49830/): Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Audio (medium 6.6)
- [CVE-2022-33303](https://insights.sbomify.com/CVE-2022-33303/): Uncontrolled resource consumption in Linux kernel (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-35089 and fix it if it is affected.

What it is: CVE-2021-35089 is a high-severity memory corruption vulnerability in Qualcomm Qca6574au Firmware, published on 1 Apr 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-2021-35089 in the wild and no public exploit code.

Affected product: Qualcomm Qca6574au 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-2021-35089/ (Markdown: https://insights.sbomify.com/CVE-2021-35089/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-35089
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-35089
- OSV: https://osv.dev/vulnerability/CVE-2021-35089

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-35089/
Summaries are generated and may contain mistakes; the official description above is the record.