# CVE-2016-1233: Privilege escalation in n/a

> Local attackers can gain privileges due to world-writable permissions on the /dev/cuse device in the Debian fuse package.

- **Severity:** High 7.8 (`CVSS:3.0/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:** 26 Jan 2016
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2016-1233, DSA-3451-1, GHSA-7682-r2fh-32xp

## What is CVE-2016-1233?

CVE-2016-1233 is a high-severity vulnerability in n/a, published on 26 Jan 2016. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An unspecified udev rule in the Debian fuse package in jessie before 2.9.3-15+deb8u2, in stretch before 2.9.5-1, and in sid before 2.9.5-1 sets world-writable permissions for the /dev/cuse character device, which allows local users to gain privileges via a character device in /dev, related to an ioctl.

Weakness: CWE-264

## Which versions are affected by CVE-2016-1233?

It affects 1 product.


Products: Debian Fuse.

## How do I fix CVE-2016-1233?

Upgrade to a fixed version.

## Is CVE-2016-1233 being exploited?

There is no known exploitation of CVE-2016-1233 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1233 and fix it if it is affected.

What it is: CVE-2016-1233 is a high-severity vulnerability in n/a, published on 26 Jan 2016. 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-2016-1233 in the wild and no public exploit code.

Affected product: n/a. 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-2016-1233/ (Markdown: https://insights.sbomify.com/CVE-2016-1233/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1233
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1233
- OSV: https://osv.dev/vulnerability/CVE-2016-1233

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1233/
Summaries are generated and may contain mistakes; the official description above is the record.