PHP 5.4.38/5.5.22/5.6.6 SplObjectStorage unserialize use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP 5.4.38/5.5.22/5.6.6. It has been rated as critical. The affected element is the function unserialize of the component SplObjectStorage. This manipulation causes use after free. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in PHP 5.4.38/5.5.22/5.6.6 (Programming Language Software). Affected by this vulnerability is the function unserialize of the component SplObjectStorage. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 08/07/2015 as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.4.44, 5.5.28 or 5.6.12 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (105392). Entries connected to this vulnerability are available at VDB-76950 and VDB-76949. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.4.44/5.5.28/5.6.12

Timelineinfo

08/07/2015 🔍
08/10/2015 +3 days 🔍
09/29/2017 +781 days 🔍

Sourcesinfo

Product: php.org

Advisory: seclists.org
Status: Confirmed

GCVE (VulDB): GCVE-100-76951
X-Force: 105392 - PHP SplObjectStorage code execution

See also: 🔍

Entryinfo

Created: 08/10/2015 10:54
Updated: 09/29/2017 08:57
Changes: 08/10/2015 10:54 (40), 09/29/2017 08:57 (4)
Complete: 🔍
Cache ID: 216:C6C:103

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