---
title: "CVE-2017-0380\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2017-0380?format=md
keywords: index, follow
---

# CVE-2017-0380

Publication date 18 September 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.9 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-0380?format=md#impact-score)

Toggle side navigation

## Description

The rend\_service\_intro\_established function in or/rendservice.c in Tor
before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x
before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is
disabled, allows attackers to obtain sensitive information by leveraging
access to the log files of a hidden service, because uninitialized stack
data is included in an error message about construction of an introduction
point circuit.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tor | 18.04 LTS bionic | Not affected |
| 17.10 artful | Fixed 0.3.0.13-0ubuntu1~17.10.2 |
| 17.04 zesty | Ignored end of life |
| 16.04 LTS xenial | Fixed 0.2.9.14-1ubuntu1~16.04.2 |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.9 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.9 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0380)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-0380)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-0380)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-0380)

### Other references

* <https://trac.torproject.org/projects/tor/ticket/23490>
* <https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486>
* <https://www.cve.org/CVERecord?id=CVE-2017-0380>