# CVE-2023-33087: Buffer Copy without Checking Size of Input (`Classic Buffer Overflow`) in Core

> A buffer overflow in Qualcomm Snapdragon core allows attackers to execute arbitrary code or escalate privileges via malicious RX intent requests.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 5 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** 3508356, A-299146536, ASB-A-299146536, GHSA-rvh5-x463-8v8x

## What is CVE-2023-33087?

CVE-2023-33087 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 5 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory corruption in Core while processing RX intent request.

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

## Which versions are affected by CVE-2023-33087?

It affects 118 products.


Products: Qualcomm Apq5053-Aa Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6574 Firmware, Qualcomm Qca6574a Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6584au Firmware, Qualcomm Qca6595 Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6696 Firmware, Qualcomm Qca6698aq Firmware, Qualcomm Qca6797aq Firmware, Qualcomm Qca8081 Firmware and 98 more.

## How do I fix CVE-2023-33087?

Apply the vendor's patch.

## Is CVE-2023-33087 being exploited?

There is no known exploitation of CVE-2023-33087 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Ar8035 Firmware

- [CVE-2023-33079](https://insights.sbomify.com/CVE-2023-33079/): Use of Out-of-range Pointer Offset in Audio (high 7.8)
- [CVE-2023-33031](https://insights.sbomify.com/CVE-2023-33031/): Buffer Copy Without Checking Size of Input in Automotive Audio (high 7.8)
- [CVE-2023-33055](https://insights.sbomify.com/CVE-2023-33055/): Buffer Copy Without Checking Size of Input in Audio (high 7.8)
- [CVE-2023-24850](https://insights.sbomify.com/CVE-2023-24850/): Improper Validation of Array Index in HLOS (high 7.8)
- [CVE-2023-33034](https://insights.sbomify.com/CVE-2023-33034/): Signed-to-unsigned conversion error in Audio (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33087 and fix it if it is affected.

What it is: CVE-2023-33087 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 5 Dec 2023. 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-2023-33087 in the wild and no public exploit code.

Affected product: Qualcomm Ar8035 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-2023-33087/ (Markdown: https://insights.sbomify.com/CVE-2023-33087/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33087
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33087
- OSV: https://osv.dev/vulnerability/CVE-2023-33087

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-33087/
Summaries are generated and may contain mistakes; the official description above is the record.