# CVE-2019-12247: Integer overflow in n/a

> An integer overflow in QEMU Guest Agent argument handling could lead to denial of service, though exploitability is disputed.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 May 2019
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-12247, GHSA-rpv4-4xh7-p4f6, UBUNTU-CVE-2019-12247

## What is CVE-2019-12247?

CVE-2019-12247 is a high-severity vulnerability in Qemu Qemu, published on 22 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

QEMU 3.0.0 has an Integer Overflow because the qga/commands*.c files do not check the length of the argument list or the number of environment variables. NOTE: This has been disputed as not exploitable

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2019-12247?

It affects 1 product.


Products: Qemu Qemu.

## How do I fix CVE-2019-12247?

No fix has been published for CVE-2019-12247 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12247 being exploited?

There is no known exploitation of CVE-2019-12247 in the wild and no public exploit code.

## Other vulnerabilities in Qemu Qemu

- [CVE-2022-36648](https://insights.sbomify.com/CVE-2022-36648/): Null dereference in n/a (critical 10.0)
- [CVE-2015-8556](https://insights.sbomify.com/CVE-2015-8556/): Race condition in n/a (critical 10.0)
- [CVE-2009-3616](https://insights.sbomify.com/CVE-2009-3616/): Use after free in n/a (critical 9.9)
- [CVE-2019-12928](https://insights.sbomify.com/CVE-2019-12928/): Command injection in n/a (critical 9.8)
- [CVE-2019-12929](https://insights.sbomify.com/CVE-2019-12929/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-12247 and fix it if it is affected.

What it is: CVE-2019-12247 is a high-severity vulnerability in Qemu Qemu, published on 22 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-12247 in the wild and no public exploit code.

Affected product: Qemu Qemu. 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-2019-12247/ (Markdown: https://insights.sbomify.com/CVE-2019-12247/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12247
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12247
- OSV: https://osv.dev/vulnerability/CVE-2019-12247

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12247/
Summaries are generated and may contain mistakes; the official description above is the record.