# CVE-2019-0804: Information disclosure in Azure

> An attacker can read sensitive information from swap files created by the Azure Linux Agent on resource disks.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 9 Apr 2019
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-0804, DLA-1709-1, DSA-4406-1, GHSA-wccr-wh3m-8q5c, RHSA-2019:1527, SUSE-SU-2019:0603-1, SUSE-SU-2019:3393-1, SUSE-SU-2019:3394-1, SUSE-SU-2020:0440-1, SUSE-SU-2020:14454-1, UBUNTU-CVE-2019-0804, USN-3907-1, openSUSE-SU-2019:1106-1, openSUSE-SU-2020:0261-1, openSUSE-SU-2024:11217-1

## What is CVE-2019-0804?

CVE-2019-0804 is a medium-severity vulnerability in Microsoft Azure, published on 9 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An information disclosure vulnerability exists in the way Azure WaLinuxAgent creates swap files on resource disks, aka 'Azure Linux Agent Information Disclosure Vulnerability'.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2019-0804?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `WALinuxAgent` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.2.32-1.el8_0.1 |
| `python-azure-agent` | SUSE:Linux Enterprise Module for Public Cloud 12 | All versions | 2.2.45-34.20.1 |
| `python-azure-agent` | SUSE:Linux Enterprise Module for Public Cloud 15 | All versions | 2.2.36-7.6.1 |
| `python-azure-agent` | SUSE:Linux Enterprise Module for Public Cloud 15 | All versions | 2.2.45-7.9.1 |
| `python-azure-agent` | SUSE:Linux Enterprise Module for Public Cloud 15 SP1 | All versions | 2.2.45-3.3.1 |
| `python-azure-agent` | SUSE:Linux Enterprise Server 11-PUBCLOUD | All versions | 2.2.45-28.8.1 |
| `python-azure-agent` | openSUSE:Leap 15.0 | All versions | 2.2.36-lp150.5.10.1 |
| `python-azure-agent` | openSUSE:Leap 15.1 | All versions | 2.2.45-lp151.2.3.1 |

Products: Microsoft Walinuxagent.

## How do I fix CVE-2019-0804?

Apply the vendor's patch.

## Is CVE-2019-0804 being exploited?

There is no known exploitation of CVE-2019-0804 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0804 and fix it if it is affected.

What it is: CVE-2019-0804 is a medium-severity vulnerability in Microsoft Azure, published on 9 Apr 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-2019-0804 in the wild and no public exploit code.

Affected product: Microsoft Azure. 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-2019-0804/ (Markdown: https://insights.sbomify.com/CVE-2019-0804/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0804
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0804
- OSV: https://osv.dev/vulnerability/CVE-2019-0804

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-0804/
Summaries are generated and may contain mistakes; the official description above is the record.