CVE-2015-4116

Publication date 16 May 2016

Last updated 25 August 2025

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Use-after-free vulnerability in the spl_ptr_heap_insert function in ext/spl/spl_heap.c in PHP before 5.5.27 and 5.6.x before 5.6.11 allows remote attackers to execute arbitrary code by triggering a failed SplMinHeap::compare operation.

Read the notes from the security team

Status

Package Ubuntu Release Status
php5 16.04 LTS xenial Not in release
15.10 wily
Not affected
14.04 LTS trusty
Fixed 5.5.9+dfsg-1ubuntu4.19
12.04 LTS precise
Fixed 5.3.10-1ubuntu3.24

Notes

sbeattie

requires malformed php code, which is not usually part of a threat model (accepting and executing random php statements)

Patch details

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

Package Patch details
php5

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references