# CVE-2023-33053: Improper Validation of Array Index in Kernel

> An attacker can exploit improper array index validation in the Qualcomm kernel to cause memory corruption, potentially leading to code execution or privilege escalation.

- **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:** Yes
- **Published:** 5 Dec 2023
- **Updated:** 2 Dec 2024
- **Also known as:** 3453941, A-299146326, ASB-A-299146326, GHSA-pqvh-6cg8-v256, ROOT-OS-UBUNTU-2204-CVE-2023-33053, ROOT-OS-UBUNTU-2404-CVE-2023-33053, UBUNTU-CVE-2023-33053

## What is CVE-2023-33053?

CVE-2023-33053 is a high-severity memory corruption vulnerability in Qualcomm Csr8811 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 Kernel while parsing metadata.

Weakness: CWE-129 (Improper Validation of Array Index)

## Which versions are affected by CVE-2023-33053?

It affects 117 products.


Products: Qualcomm Csr8811 Firmware, Qualcomm Immersive Home 214 Platform Firmware, Qualcomm Immersive Home 216 Platform Firmware, Qualcomm Immersive Home 316 Platform Firmware, Qualcomm Immersive Home 318 Platform Firmware, Qualcomm Immersive Home 3210 Platform Firmware, Qualcomm Immersive Home 326 Platform Firmware, Qualcomm Ipq5010 Firmware, Qualcomm Ipq5028 Firmware, Qualcomm Ipq5332 Firmware, Qualcomm Ipq6000 Firmware, Qualcomm Ipq6010 Firmware, Qualcomm Ipq6018 Firmware, Qualcomm Ipq6028 Firmware, Qualcomm Ipq8070a Firmware, Qualcomm Ipq8071a Firmware, Qualcomm Ipq8072a Firmware, Qualcomm Ipq8074a Firmware, Qualcomm Ipq8076 Firmware, Qualcomm Ipq8076a Firmware and 97 more.

## How do I fix CVE-2023-33053?

Apply the vendor's patch.

## Is CVE-2023-33053 being exploited?

There is no known exploitation of CVE-2023-33053 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Csr8811 Firmware

- [CVE-2024-33066](https://insights.sbomify.com/CVE-2024-33066/): Improper Input Validation in WLAN Resource Manager (critical 9.8)
- [CVE-2022-25652](https://insights.sbomify.com/CVE-2022-25652/): Weak cryptography in Snapdragon Wired Infrastructure and Networking (critical 9.0)
- [CVE-2022-40522](https://insights.sbomify.com/CVE-2022-40522/): Double free in Linux Networking (high 8.4)
- [CVE-2024-33049](https://insights.sbomify.com/CVE-2024-33049/): Buffer Over-read in WLAN Host Communication (high 7.5)
- [CVE-2024-33025](https://insights.sbomify.com/CVE-2024-33025/): Buffer Over-read in WLAN Host (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33053 and fix it if it is affected.

What it is: CVE-2023-33053 is a high-severity memory corruption vulnerability in Qualcomm Csr8811 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-2023-33053 in the wild and no public exploit code.

Affected product: Qualcomm Csr8811 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-2023-33053/ (Markdown: https://insights.sbomify.com/CVE-2023-33053/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33053
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33053
- OSV: https://osv.dev/vulnerability/CVE-2023-33053

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-33053/
Summaries are generated and may contain mistakes; the official description above is the record.