---
title: "CVE-2018-14884\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-2018-14884?format=md
keywords: index, follow
---

# CVE-2018-14884

Publication date 3 August 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2018-14884?format=md#impact-score)

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## Description

An issue was discovered in PHP 7.0.x before 7.0.27, 7.1.x before 7.1.13,
and 7.2.x before 7.2.1. Inappropriately parsing an HTTP response leads to a
segmentation fault because http\_header\_value in
ext/standard/http\_fopen\_wrapper.c can be a NULL value that is mishandled in
an atoi call.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2018-14884?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| php5 | 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not affected |
| php7.0 | 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |
| php7.2 | 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |

---

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

## Notes

---

### [sbeattie](https://launchpad.net/~sbeattie)

PEAR issues should go against php-pear as of xenial

---

### [ratliff](https://launchpad.net/~ratliff)

issue introduced in 7.0.16, 7.1.2, 7.2-dev per upstream bug

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14884)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-14884)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-14884)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-14884)

### Other references

* <http://php.net/ChangeLog-7.php>
* <https://www.cve.org/CVERecord?id=CVE-2018-14884>