PHP 5.4.41/5.5.25/5.6.9 SOAP Extension unserialize type confusion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as problematic, has been found in PHP 5.4.41/5.5.25/5.6.9 (Programming Language Software). Affected by this issue is the function unserialize of the component SOAP Extension. The manipulation with an unknown input leads to a type confusion vulnerability. Using CWE to declare the problem leads to CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. Impacted is confidentiality, and availability.

The weakness was shared 06/26/2015 as Bug 1222538 as confirmed bug report (Bugzilla). The advisory is shared for download at This vulnerability is handled as CVE-2015-4599 since 06/16/2015. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 84659 (Oracle Linux 6 : php (ELSA-2015-1218)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196160 (Ubuntu Security Notification for Php5 Vulnerabilities (USN-2658-1)).

Upgrading to version 5.4.42, 5.6.10 or 5.5.26 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (104111) and Tenable (84659).






CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
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NVD Base Score: 9.8
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Class: Type confusion
CWE: CWE-843

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 84659
Nessus Name: Oracle Linux 6 : php (ELSA-2015-1218)
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OpenVAS ID: 100723
OpenVAS Name: RedHat Update for php RHSA-2015:1218-01
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.4.42/5.6.10/5.5.26
Patch: 51856a76f87ecb24fe1385342be43610fb6c86e4


06/16/2015 🔍
06/16/2015 +0 days 🔍
06/17/2015 +1 days 🔍
06/18/2015 +1 days 🔍
06/25/2015 +7 days 🔍
06/26/2015 +1 days 🔍
06/29/2015 +3 days 🔍
05/16/2016 +322 days 🔍
05/22/2022 +2197 days 🔍



Advisory: Bug 1222538
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4599 (🔍)
X-Force: 104111 - PHP Soap extension information disclosure
SecurityTracker: 1032709 - PHP Multiple Bugs Let Remote Users Deny Service and Execute Arbitrary Code
Vulnerability Center: 50608 - PHP <5.6.6 Remote Code Execution Vulnerability due to Unserialize Issue in SoapFault, High
SecurityFocus: 75251 - PHP CVE-2015-4599 Remote Memory Corruption Vulnerability


Created: 06/29/2015 05:44 PM
Updated: 05/22/2022 08:17 AM
Changes: 06/29/2015 05:44 PM (85), 07/01/2017 07:50 AM (4), 05/22/2022 08:16 AM (6), 05/22/2022 08:17 AM (1)
Complete: 🔍
Cache ID: 44:E23:40


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