CVE-2019-11049

Publication date 23 December 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.

Read the notes from the security team

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	Not affected
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	Not affected
	14.04 LTS trusty	Not in release
php7.2	19.10 eoan	Not in release
	19.04 disco	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
php7.3	19.10 eoan	Not affected
	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

Notes

mdeslaur

this issue is Windows-specific

Patch details

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

Package	Patch details
php7.3	Upstream: http://git.php.net/?p=php-src.git;a=commit;h=11893c8e665d285f72c2b8a0fbe01a3fcc03b806

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H