---
title: "CVE-2016-7099\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-2016-7099?format=md
keywords: index, follow
---

# CVE-2016-7099

Publication date 10 October 2016

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-2016-7099?format=md#impact-score)

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## Description

The tls.checkServerIdentity function in Node.js 0.10.x before 0.10.47,
0.12.x before 0.12.16, 4.x before 4.6.0, and 6.x before 6.7.0 does not
properly handle wildcards in name fields of X.509 certificates, which
allows man-in-the-middle attackers to spoof servers via a crafted
certificate.

### From the Ubuntu Security Team

Alexander Minozhenko and James Bunton discovered that Node.js did not properly
handle wildcards in name fields of X.509 TLS certificates. An attacker could
use this vulnerability to execute a man-in-the-middle-attack.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| nodejs | 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Not affected |
| 19.04 disco | Not affected |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Fixed 4.2.6~dfsg-1ubuntu4.2+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 0.10.25~dfsg2-2ubuntu1.2+esm1  Ubuntu Pro |
| 12.04 LTS precise | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2016-7099?format=md#patch-details)

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### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| nodejs | * Upstream:   [0d7e21e](https://github.com/nodejs/node/commit/0d7e21ee7bcc79046f898f8c202d2ec87d23d711) * Upstream:   [3ff82de](https://github.com/nodejs/node/commit/3ff82deb2c3bd580d64be75dbafe460393c952fb) |

## 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 | None |
  | Integrity impact | High |
  | 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:N/I:H/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7099)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-7099)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-7099)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-7099)

### Related Ubuntu Security Notices (USN)

+ [USN-4796-1](https://usn.ubuntu.com/USN-4796-1)
+ Node.js vulnerabilities
+ 15 March 2021

### Other references

* <https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/>
* <https://www.cve.org/CVERecord?id=CVE-2016-7099>