CVE-2015-6832

Publication date 27 August 2015

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Use-after-free vulnerability in the SPL unserialize implementation in ext/spl/spl_array.c 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 execute arbitrary code via crafted serialized data that triggers misuse of an array field.

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=b7fa67742cd8d2b0ca0c0273b157f6ffee9ad6e2

Severity score breakdown

Parameter	Value
Base score	7.3 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	Low
Availability impact	Low
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

USN-2758-1
PHP vulnerabilities
30 September 2015