PHP up to 5.3.4 strtod.c zend_strtod numeric error

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP. It has been rated as problematic. The affected element is the function zend_strtod of the file strtod.c. Performing a manipulation results in numeric error. This vulnerability is reported as CVE-2010-4645. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in PHP (Programming Language Software). This affects the function zend_strtod of the file strtod.c. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. The summary by CVE is:

strtod.c, as used in the zend_strtod function in PHP 5.2 before 5.2.17 and 5.3 before 5.3.5, and other products, allows context-dependent attackers to cause a denial of service (infinite loop) via a certain floating-point value in scientific notation, which is not properly handled in x87 FPU registers, as demonstrated using 2.2250738585072011e-308.

The weakness was disclosed 01/10/2011 by Rick (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2010-4645 since 01/03/2011. 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 78127 (F5 Networks BIG-IP : PHP vulnerability (SOL12650)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 87123 (HP System Management Homepage Multiple Vulnerabilities (HPSBMU02764)).

Upgrading to version 5.2.11 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (64470), Exploit-DB (35164), Tenable (78127), SecurityFocus (BID 45668†) and Secunia (SA42843†). The entries VDB-4323, VDB-8310, VDB-9594 and VDB-46964 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78127
Nessus Name: F5 Networks BIG-IP : PHP vulnerability (SOL12650)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 68803
OpenVAS Name: Slackware Advisory SSA:2011-010-01 php
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: PHP 5.2.11

Timelineinfo

01/03/2011 🔍
01/03/2011 +0 days 🔍
01/03/2011 +0 days 🔍
01/10/2011 +7 days 🔍
01/10/2011 +0 days 🔍
02/28/2011 +49 days 🔍
10/10/2014 +1320 days 🔍
03/19/2015 +160 days 🔍
03/14/2016 +361 days 🔍
01/03/2025 +3217 days 🔍

Sourcesinfo

Product: php.org

Advisory: USN-1042-1
Researcher: Rick
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-4645 (🔍)
GCVE (CVE): GCVE-0-2010-4645
GCVE (VulDB): GCVE-100-56007

OVAL: 🔍
IAVM: 🔍

X-Force: 64470
SecurityFocus: 45668 - PHP 'zend_strtod()' Function Floating-Point Value Denial of Service Vulnerability
Secunia: 42843
Vulnerability Center: 57295 - PHP 5.2-5.2.16 and 5.3-5.3.3 \x27zend_strtod()\x27 Function Hangs on Numeric Value 2.2250738585072011e-308, Medium
Vupen: ADV-2011-0060

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

Entryinfo

Created: 03/19/2015 23:27
Updated: 01/03/2025 11:50
Changes: 03/19/2015 23:27 (77), 02/01/2019 09:36 (12), 10/11/2021 12:55 (3), 10/11/2021 13:03 (1), 10/12/2021 07:30 (1), 10/12/2021 07:37 (1), 01/03/2025 11:50 (17)
Complete: 🔍
Cache ID: 216:4FE:103

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