# CVE-2020-11186: Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile

> An attacker can cause a denial of service by triggering an infinite loop in the modem during histogram dimension parsing.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** No
- **Published:** 17 Mar 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v6w4-vhpg-3q68

## What is CVE-2020-11186?

CVE-2020-11186 is a medium-severity denial of service vulnerability in Qualcomm Csrb31024 Firmware, published on 17 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Modem will enter into busy mode in an infinite loop while parsing histogram dimension due to improper validation of input received in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile

Weakness: CWE-835 (Loop with Unreachable Exit Condition)

## Which versions are affected by CVE-2020-11186?

It affects 113 products.


Products: Qualcomm Csrb31024 Firmware, Qualcomm Pm3003a Firmware, Qualcomm Pm7150a Firmware, Qualcomm Pm7150l Firmware, Qualcomm Pm7250 Firmware, Qualcomm Pm7250b Firmware, Qualcomm Pm8008 Firmware, Qualcomm Pm8009 Firmware, Qualcomm Pm8150a Firmware, Qualcomm Pm8150b Firmware, Qualcomm Pm8150c Firmware, Qualcomm Pm8150l Firmware, Qualcomm Pm8250 Firmware, Qualcomm Pmk8002 Firmware, Qualcomm Pmr525 Firmware, Qualcomm Pmx24 Firmware, Qualcomm Pmx55 Firmware, Qualcomm Qat3516 Firmware, Qualcomm Qat3518 Firmware, Qualcomm Qat3519 Firmware and 93 more.

## How do I fix CVE-2020-11186?

No fix has been published for CVE-2020-11186 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11186 being exploited?

There is no known exploitation of CVE-2020-11186 in the wild and no public exploit code.

## Other vulnerabilities in Qualcomm Csrb31024 Firmware

- [CVE-2020-11236](https://insights.sbomify.com/CVE-2020-11236/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile (high 8.4)
- [CVE-2020-11237](https://insights.sbomify.com/CVE-2020-11237/): Null dereference in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile (high 8.4)
- [CVE-2024-43066](https://insights.sbomify.com/CVE-2024-43066/): Use After Free in HLOS (high 7.8)
- [CVE-2020-11273](https://insights.sbomify.com/CVE-2020-11273/): Null dereference in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile (high 7.5)
- [CVE-2023-28572](https://insights.sbomify.com/CVE-2023-28572/): Buffer Over-read in WLAN HOST (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11186 and fix it if it is affected.

What it is: CVE-2020-11186 is a medium-severity denial of service vulnerability in Qualcomm Csrb31024 Firmware, published on 17 Mar 2021. 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-2020-11186 in the wild and no public exploit code.

Affected product: Qualcomm Csrb31024 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-2020-11186/ (Markdown: https://insights.sbomify.com/CVE-2020-11186/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11186
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11186
- OSV: https://osv.dev/vulnerability/CVE-2020-11186

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-11186/
Summaries are generated and may contain mistakes; the official description above is the record.