PHP 5.6 Posthandler efree memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.1$0-$5k0.00

A vulnerability was found in PHP 5.6 (Programming Language Software). It has been classified as critical. Affected is the function efree of the component Posthandler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 10/02/2014 by Stefan Esser as confirmed changelog entry (Website). The advisory is shared for download at php.net. This vulnerability is traded as CVE-2014-3622 since 05/14/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/21/2022). This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 78082 (PHP 5.6.x < 5.6.1 'add_post_var' Code Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123715 (Solaris 11.2 Support Repository Update (SRU) 12.5.0 Missing).

Upgrading to version 5.6.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (96853) and Tenable (78082). Further details are available at bugs.php.net. Similar entries are available at 74524, 75451, 90573 and 90611.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 78082
Nessus Name: PHP 5.6.x < 5.6.1 'add_post_var' Code Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.6.1

Timelineinfo

05/14/2014 🔍
10/02/2014 +141 days 🔍
10/02/2014 +0 days 🔍
10/02/2014 +0 days 🔍
10/07/2014 +5 days 🔍
10/08/2014 +1 days 🔍
10/09/2014 +1 days 🔍
02/21/2022 +2692 days 🔍

Sourcesinfo

Product: php.org

Advisory: 68088
Researcher: Stefan Esser
Status: Confirmed

CVE: CVE-2014-3622 (🔍)
IAVM: 🔍

X-Force: 96853 - PHP efree() code execution, High Risk
Vulnerability Center: 46362 - PHP PHP 5.6 \x27efree()\x27 Remote Code Execution Vulnerability, High
SecurityFocus: 70259 - PHP 'efree()' Function Remote Code Execution Vulnerability

Misc.: 🔍
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Entryinfo

Created: 10/09/2014 11:31
Updated: 02/21/2022 11:25
Changes: 10/09/2014 11:31 (68), 06/08/2017 08:59 (4), 02/21/2022 11:09 (3), 02/21/2022 11:17 (18), 02/21/2022 11:25 (1)
Complete: 🔍

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