CVE-2015-6833

Publication date 27 August 2015

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Directory traversal vulnerability in the PharData class in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to write to arbitrary files via a .. (dot dot) in a ZIP archive entry that is mishandled during an extractTo call.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php5	15.04 vivid	Fixed 5.6.4+dfsg-4ubuntu6.3
	14.04 LTS trusty	Fixed 5.5.9+dfsg-1ubuntu4.13
	12.04 LTS precise	Fixed 5.3.10-1ubuntu3.20

Patch details

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

Package	Patch details
php5	Upstream: http://git.php.net/?p=php-src.git;a=commit;h=dda81f0505217a95db065e6bf9cc2d81eb902417 Upstream: http://git.php.net/?p=php-src.git;a=commit;h=eb7ba73079b73ca4ef91307ae1ef30b43468717b

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-2758-1
PHP vulnerabilities
30 September 2015