PHP 5.4.38/5.5.22/5.6.6 SplDoublyLinkedList 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 declared as critical. Impacted is the function unserialize of the component SplDoublyLinkedList. The manipulation results in use after free. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in PHP 5.4.38/5.5.22/5.6.6 (Programming Language Software). Affected is the function unserialize of the component SplDoublyLinkedList. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 08/07/2015 as confirmed mailinglist post (Full-Disclosure). The advisory is available at seclists.org. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details 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 (105391). Similar entries are available at VDB-76951 and VDB-76949. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

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-100-76950
X-Force: 105391 - PHP SplDoublyLinkedList 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: 216:892:103

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