PHP up to 5.6.23 php_bz2_filter_create type confusion

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

A vulnerability has been found in PHP up to 5.6.23 (Programming Language Software) and classified as critical. This vulnerability affects the function php_bz2_filter_create. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 07/21/2016 as Version 7.0.9 as confirmed changelog (Website). The advisory is available at php.net. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 5.6.24 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 90198, 90199, 90200 and 90201 are pretty similar.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

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: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 5.6.24

Timelineinfo

07/21/2016 🔍
07/21/2016 +0 days 🔍
07/22/2016 +1 days 🔍
03/07/2019 +958 days 🔍

Sourcesinfo

Product: php.org

Advisory: Version 7.0.9
Status: Confirmed
See also: 🔍

Entryinfo

Created: 07/22/2016 20:06
Updated: 03/07/2019 08:09
Changes: 07/22/2016 20:06 (42), 03/07/2019 08:09 (2)
Complete: 🔍

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