# CVE-2023-40465: Improper input leads to DoS

> A local network attacker can cause a Denial of Service on the captive portal of Sierra Wireless ALEOS devices due to improper input handling in a third-party component.

- **Severity:** High 8.3 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/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:** 4 Dec 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-2vrx-x739-p6p6

## What is CVE-2023-40465?

CVE-2023-40465 is a high-severity denial of service vulnerability in SierraWireless ALEOS, published on 4 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Several versions of
ALEOS, including ALEOS 4.16.0, include an opensource

third-party
component which can be exploited from the local

area network,
resulting in a Denial of Service condition for the captive portal.

Weakness: CWE-787 (Out-of-bounds Write), CWE-122 (Heap-based Buffer Overflow), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2023-40465?

It affects 1 product.


Products: Sierrawireless Aleos.

## How do I fix CVE-2023-40465?

No fix has been published for CVE-2023-40465 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-40465 being exploited?

There is no known exploitation of CVE-2023-40465 in the wild and no public exploit code.

## Other vulnerabilities in SierraWireless ALEOS

- [CVE-2018-4063](https://insights.sbomify.com/CVE-2018-4063/): Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type (high 8.8, exploited in the wild)
- [CVE-2015-2897](https://insights.sbomify.com/CVE-2015-2897/): Hardcoded credentials in n/a (critical 10.0)
- [CVE-2019-11851](https://insights.sbomify.com/CVE-2019-11851/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-10251](https://insights.sbomify.com/CVE-2018-10251/): Missing authorization in n/a (critical 9.8)
- [CVE-2019-11857](https://insights.sbomify.com/CVE-2019-11857/): ALEOS AceManager Information Disclosure (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-40465 and fix it if it is affected.

What it is: CVE-2023-40465 is a high-severity denial of service vulnerability in SierraWireless ALEOS, published on 4 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-2023-40465 in the wild and no public exploit code.

Affected product: SierraWireless ALEOS. 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-2023-40465/ (Markdown: https://insights.sbomify.com/CVE-2023-40465/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-40465
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-40465
- OSV: https://osv.dev/vulnerability/CVE-2023-40465

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-40465/
Summaries are generated and may contain mistakes; the official description above is the record.