CVE-2020-7066

Publication date 1 April 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php5	20.04 LTS focal	Not in release
	19.10 eoan	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+esm11 Ubuntu Pro
php7.0	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Fixed 7.0.33-0ubuntu0.16.04.14
	14.04 LTS trusty	Not in release
php7.2	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	18.04 LTS bionic	Fixed 7.2.24-0ubuntu0.18.04.4
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
php7.3	20.04 LTS focal	Not in release
	19.10 eoan	Fixed 7.3.11-0ubuntu0.19.10.4
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
php7.4	20.04 LTS focal	Fixed 7.4.3-4ubuntu1.1
	19.10 eoan	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

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Notes

sbeattie

PEAR issues should go against php-pear as of xenial

leosilva

php5 in precise is 5.3 and does not support the Zend API needed to fix this issue. Since backport this is to intrusive, marking it as ignored for precise/esm.

Patch details

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

Package	Patch details
php5	Upstream: c358285

Severity score breakdown

Parameter	Value
Base score	4.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N