CVE-2019-9675

Publication date 11 March 2019

Last updated 4 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php7.2	19.04 disco	Fixed 7.2.15-0ubuntu3
	18.10 cosmic	Fixed 7.2.15-0ubuntu0.18.10.2
	18.04 LTS bionic	Fixed 7.2.15-0ubuntu0.18.04.2
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
php5	19.04 disco	Not in release
	18.10 cosmic	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
php7.0	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Fixed 7.0.33-0ubuntu0.16.04.3
	14.04 LTS trusty	Not in release
php7.3	19.04 disco	Not in release
	18.10 cosmic	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

released in USN-3922-1, ommited from text

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: http://git.php.net/?p=php-src.git;a=commit;h=e0f5d62bd6690169998474b62f92a8c5ddf0e699
php7.0	Upstream: http://git.php.net/?p=php-src.git;a=commit;h=e0f5d62bd6690169998474b62f92a8c5ddf0e699

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H