# CVE-2019-19046: Denial of service in n/a

> A memory leak in the Linux kernel IPMI driver allows attackers to cause denial of service via memory consumption, though exploitation is disputed.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Nov 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-19046, GHSA-j58x-5m9c-f2g5, UBUNTU-CVE-2019-19046

## What is CVE-2019-19046?

CVE-2019-19046 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 18 Nov 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of this because an attacker cannot realistically control this failure at probe time

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2019-19046?

It affects 3 products.


Products: Fedoraproject Fedora, Linux kernel, Opensuse Leap.

## How do I fix CVE-2019-19046?

Apply the vendor's patch.

## Is CVE-2019-19046 being exploited?

There is no known exploitation of CVE-2019-19046 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-19046 and fix it if it is affected.

What it is: CVE-2019-19046 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 18 Nov 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-19046 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-2019-19046/ (Markdown: https://insights.sbomify.com/CVE-2019-19046/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-19046
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-19046
- OSV: https://osv.dev/vulnerability/CVE-2019-19046

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-19046/
Summaries are generated and may contain mistakes; the official description above is the record.