# CVE-2017-8924: Integer overflow in n/a

> Local attackers can leak sensitive kernel memory via a crafted USB device triggering an integer underflow in the io_ti driver.

- **Severity:** Medium 4.6 (`CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 12 May 2017
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-8924, GHSA-c76w-89q6-h938, UBUNTU-CVE-2017-8924

## What is CVE-2017-8924?

CVE-2017-8924 is a medium-severity vulnerability in Debian Debian Linux, published on 12 May 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.

Weakness: CWE-191 (Integer Underflow (Wrap or Wraparound))

## Which versions are affected by CVE-2017-8924?

It affects 2 products.


Products: Debian Debian Linux, Linux kernel.

## How do I fix CVE-2017-8924?

Apply the vendor's patch.

## Is CVE-2017-8924 being exploited?

There is no known exploitation of CVE-2017-8924 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-8924 and fix it if it is affected.

What it is: CVE-2017-8924 is a medium-severity vulnerability in Debian Debian Linux, published on 12 May 2017. 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-2017-8924 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2017-8924/ (Markdown: https://insights.sbomify.com/CVE-2017-8924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-8924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-8924
- OSV: https://osv.dev/vulnerability/CVE-2017-8924

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-8924/
Summaries are generated and may contain mistakes; the official description above is the record.