PHP 4.4.7/5.2.3 strcspn memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in PHP 4.4.7/5.2.3. This issue affects the function strcspn. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2007-4657. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHP 4.4.7/5.2.3 (Programming Language Software). It has been classified as critical. This affects the function strcspn. 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 summary by CVE is:

Multiple integer overflows in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, allow remote attackers to obtain sensitive information (memory contents) or cause a denial of service (thread crash) via a large len value to the (1) strspn or (2) strcspn function, which triggers an out-of-bounds read. NOTE: this affects different product versions than CVE-2007-3996.

The weakness was published 09/04/2007 by Maksymilian Arciemowicz (shinnai) (Website). The advisory is shared at php.net. This vulnerability is uniquely identified as CVE-2007-4657 since 09/04/2007. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 29838 (Debian DSA-1444-2 : php5 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 5.2.3 eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (36388), Tenable (29838), SecurityFocus (BID 25498†), OSVDB (36862†) and Secunia (SA26642†). Similar entries are available at VDB-3203, VDB-3288, VDB-3284 and VDB-3285. 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: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 29838
Nessus Name: Debian DSA-1444-2 : php5 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60099
OpenVAS Name: Debian Security Advisory DSA 1444-1 (php5)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: PHP 5.2.3

Timelineinfo

08/30/2007 🔍
08/31/2007 +1 days 🔍
08/31/2007 +0 days 🔍
09/04/2007 +4 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/18/2007 +14 days 🔍
01/04/2008 +108 days 🔍
01/23/2008 +19 days 🔍
03/16/2015 +2609 days 🔍
07/25/2019 +1592 days 🔍

Sourcesinfo

Product: php.org

Advisory: php.net
Researcher: Maksymilian Arciemowicz (shinnai)
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4657 (🔍)
GCVE (CVE): GCVE-0-2007-4657
GCVE (VulDB): GCVE-100-38625

OVAL: 🔍

X-Force: 36388
SecurityFocus: 25498 - PHP 5.2.3 and Prior Versions Multiple Vulnerabilities
Secunia: 26642
OSVDB: 36862 - PHP strcspn Function Overflow
Vulnerability Center: 16075 - PHP Multiple Integer Overflows Allow Remote Information Disclosure or DoS, Medium
Vupen: ADV-2007-3023

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/25/2019 20:28
Changes: 03/16/2015 12:18 (76), 07/25/2019 20:28 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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