CVE-2018-7584

Publication date 1 March 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while parsing an HTTP response in the php_stream_url_wrap_http_ex function in ext/standard/http_fopen_wrapper.c. This subsequently results in copying a large string.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php5	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed in 5.5.9+dfsg-1ubuntu4.24
php7.0	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	16.04 LTS xenial	Fixed in 7.0.28-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
php7.1	18.04 LTS bionic	Not in release
	17.10 artful	Fixed in 7.1.15-0ubuntu0.17.10.1
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
php7.2	18.04 LTS bionic	Fixed in 7.2.3-1ubuntu1
	17.10 artful	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
php7.2	Upstream: 523f230

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

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

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3600-1
PHP vulnerabilities
19 March 2018

USN-3600-2
PHP vulnerabilities
15 May 2018