# CVE-2021-38479: AUVESY Versiondog

> Attackers can exploit raw pointer handling in AUVESY Versiondog API to write arbitrary data to memory, potentially leading to code execution.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Oct 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-27q3-p62g-44fr

## What is CVE-2021-38479?

CVE-2021-38479 is a medium-severity memory corruption vulnerability in AUVESY Versiondog, published on 22 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Many API function codes receive raw pointers remotely from the user and trust these pointers as valid in-bound memory regions. An attacker can manipulate API functions by writing arbitrary data into the resolved address of a raw pointer.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2021-38479?

It affects 1 product.


Products: Auvesy Versiondog.

## How do I fix CVE-2021-38479?

No fix has been published for CVE-2021-38479 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-38479 being exploited?

There is no known exploitation of CVE-2021-38479 in the wild and no public exploit code.

## Other vulnerabilities in AUVESY Versiondog

- [CVE-2021-38449](https://insights.sbomify.com/CVE-2021-38449/): AUVESY Versiondog (critical 9.8)
- [CVE-2021-38457](https://insights.sbomify.com/CVE-2021-38457/): AUVESY Versiondog (critical 9.8)
- [CVE-2021-38477](https://insights.sbomify.com/CVE-2021-38477/): AUVESY Versiondog (critical 9.8)
- [CVE-2021-38453](https://insights.sbomify.com/CVE-2021-38453/): AUVESY Versiondog (critical 9.1)
- [CVE-2021-38469](https://insights.sbomify.com/CVE-2021-38469/): AUVESY Versiondog (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-38479 and fix it if it is affected.

What it is: CVE-2021-38479 is a medium-severity memory corruption vulnerability in AUVESY Versiondog, published on 22 Oct 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-38479 in the wild and no public exploit code.

Affected product: AUVESY Versiondog. 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-2021-38479/ (Markdown: https://insights.sbomify.com/CVE-2021-38479/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-38479
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-38479
- OSV: https://osv.dev/vulnerability/CVE-2021-38479

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-38479/
Summaries are generated and may contain mistakes; the official description above is the record.