# CVE-2019-13226: Race condition in n/a

> An unprivileged user can exploit a race condition in deepin-clone to mount filesystems arbitrarily or prevent unmounting, leading to privilege escalation or denial of service.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/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:** No
- **Published:** 4 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-7wr8-6fw9-mw29

## What is CVE-2019-13226?

CVE-2019-13226 is a high-severity vulnerability in Fedoraproject Fedora, published on 4 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

deepin-clone before 1.1.3 uses a predictable path /tmp/.deepin-clone/mount/<block-dev-basename> in the Helper::temporaryMountDevice() function to temporarily mount a file system as root. An unprivileged user can prepare a symlink at this location to have the file system mounted in an arbitrary location. By winning a race condition, the attacker can also enter the mount point, thereby preventing a subsequent unmount of the file system.

Weakness: CWE-59 (Improper Link Resolution Before File Access), CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2019-13226?

It affects 2 products.


Products: Deepin Deepin-Clone, Fedoraproject Fedora.

## How do I fix CVE-2019-13226?

No fix has been published for CVE-2019-13226 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-13226 being exploited?

There is no known exploitation of CVE-2019-13226 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2019-13227](https://insights.sbomify.com/CVE-2019-13227/): Path traversal in n/a (medium 5.5)
- [CVE-2019-13228](https://insights.sbomify.com/CVE-2019-13228/): Path traversal in n/a (medium 4.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-13226 and fix it if it is affected.

What it is: CVE-2019-13226 is a high-severity vulnerability in Fedoraproject Fedora, published on 4 Jul 2019. 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-2019-13226 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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-2019-13226/ (Markdown: https://insights.sbomify.com/CVE-2019-13226/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-13226
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-13226
- OSV: https://osv.dev/vulnerability/CVE-2019-13226

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-13226/
Summaries are generated and may contain mistakes; the official description above is the record.