# CVE-2019-1372: Memory corruption in Azure App Service on Azure Stack

> Remote attackers can execute arbitrary code with system privileges by exploiting a buffer overflow in Azure App Service on Azure Stack.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:** 10 Oct 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-649f-8c3w-9g8g

## What is CVE-2019-1372?

CVE-2019-1372 is a critical memory corruption vulnerability in Microsoft Azure App Service on Azure Stack, published on 10 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An remote code execution vulnerability exists when Azure App Service/ Antares on Azure Stack fails to check the length of a buffer prior to copying memory to it.An attacker who successfully exploited this vulnerability could allow an unprivileged function run by the user to execute code in the context of NT AUTHORITY\system thereby escaping the Sandbox.The security update addresses the vulnerability by ensuring that Azure App Service sanitizes user inputs., aka 'Azure App Service Remote Code Execution Vulnerability'.

## Which versions are affected by CVE-2019-1372?

It affects 1 product.


Products: Microsoft Azure App Service on Azure Stack.

## How do I fix CVE-2019-1372?

No fix has been published for CVE-2019-1372 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1372 being exploited?

There is no known exploitation of CVE-2019-1372 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Azure App Service on Azure Stack

- [CVE-2023-21777](https://insights.sbomify.com/CVE-2023-21777/): Azure App Service on Azure Stack Hub Elevation of Privilege Vulnerability (high 8.7)
- [CVE-2018-8600](https://insights.sbomify.com/CVE-2018-8600/): Cross-site scripting in Azure App (medium 6.1)
- [CVE-2025-53765](https://insights.sbomify.com/CVE-2025-53765/): Azure Stack Hub Information Disclosure Vulnerability (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1372 and fix it if it is affected.

What it is: CVE-2019-1372 is a critical memory corruption vulnerability in Microsoft Azure App Service on Azure Stack, published on 10 Oct 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-2019-1372 in the wild and no public exploit code.

Affected product: Microsoft Azure App Service on Azure Stack. 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-2019-1372/ (Markdown: https://insights.sbomify.com/CVE-2019-1372/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1372
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1372
- OSV: https://osv.dev/vulnerability/CVE-2019-1372

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1372/
Summaries are generated and may contain mistakes; the official description above is the record.