---
title: "CVE-2019-11046\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-2019-11046?format=md
keywords: index, follow
---

# CVE-2019-11046

Publication date 23 December 2019

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-11046?format=md#impact-score)

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## Description

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP
bcmath extension functions on some systems, including Windows, can be
tricked into reading beyond the allocated space by supplying it with string
containing characters that are identified as numeric by the OS but aren't
ASCII numbers. This can read to disclosure of the content of some memory
locations.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| php5 | 19.10 eoan | Not in release |
| 19.04 disco | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Fixed 5.5.9+dfsg-1ubuntu4.29+esm8  Ubuntu Pro |
| php7.0 | 19.10 eoan | Not in release |
| 19.04 disco | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Fixed 7.0.33-0ubuntu0.16.04.9 |
| 14.04 LTS trusty | Not in release |
| php7.2 | 19.10 eoan | Not in release |
| 19.04 disco | Fixed 7.2.24-0ubuntu0.19.04.2 |
| 18.04 LTS bionic | Fixed 7.2.24-0ubuntu0.18.04.2 |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| php7.3 | 19.10 eoan | Fixed 7.3.11-0ubuntu0.19.10.2 |
| 19.04 disco | Not in release |
| 18.04 LTS bionic | Not in release |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2019-11046?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 |
| --- | --- |
| php7.3 | * Upstream:   <http://git.php.net/?p=php-src.git;a=commit;h=eb23c6008753b1cdc5359dead3a096dce46c9018> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11046)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-11046)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-11046)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-11046)

### Related Ubuntu Security Notices (USN)

+ [USN-4239-1](https://usn.ubuntu.com/USN-4239-1)
+ PHP vulnerabilities
+ 15 January 2020

### Other references

* <http://git.php.net/?p=php-src.git;a=patch;h=2d07f00b73d8f94099850e0f5983e1cc5817c196>
* <https://www.cve.org/CVERecord?id=CVE-2019-11046>