CVE-2010-4645

PHP 5.3.2 - 'zend_strtod()' Floating-Point Value Denial of Service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

strtod.c, tal como se utiliza en la función zend_strtod en PHP v5.2 anterior de v5.2.17 y v5.3 anterior de v5.3.5, y otros productos, permite a atacantes dependientes del contexto provocar una denegación de servicio (bucle infinito) a través de un cierto valor de punto flotante en notación científica, que no se manipula correctamente en los registros FPU x87.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-01-03 CVE Reserved
2011-01-03 First Exploit
2011-01-11 CVE Published
2025-02-13 CVE Updated
2025-04-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (31)

URL	Tag	Source
http://hal.archives-ouvertes.fr/docs/00/28/14/29/PDF/floating-point-article.pdf	X_refsource_misc
http://secunia.com/advisories/42812	Third Party Advisory
http://secunia.com/advisories/42843	Third Party Advisory
http://secunia.com/advisories/43051	Third Party Advisory
http://secunia.com/advisories/43189	Third Party Advisory
http://support.apple.com/kb/HT5002	X_refsource_confirm
http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308	X_refsource_misc
http://www.openwall.com/lists/oss-security/2011/01/05/8	Mailing List
http://www.openwall.com/lists/oss-security/2011/01/06/5	Mailing List
http://www.openwall.com/lists/oss-security/2023/05/14/3
http://www.vupen.com/english/advisories/2011/0066	Vdb Entry
http://www.vupen.com/english/advisories/2011/0077	Vdb Entry
http://www.vupen.com/english/advisories/2011/0198	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/64470	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/35164	2011-01-03
http://bugs.php.net/53632	2025-02-13
http://www.openwall.com/lists/oss-security/2011/01/05/2	2025-02-13
http://www.securityfocus.com/bid/45668	2025-02-13

URL	Date	SRC
http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/Zend/zend_strtod.c?r1=266327&r2=307095&pathrev=307095	2023-05-15

URL	Date	SRC
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html	2023-05-15
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053333.html	2023-05-15
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053355.html	2023-05-15
http://marc.info/?l=bugtraq&m=133226187115472&w=2	2023-05-15
http://marc.info/?l=bugtraq&m=133469208622507&w=2	2023-05-15
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.484686	2023-05-15
http://www.redhat.com/support/errata/RHSA-2011-0195.html	2023-05-15
http://www.redhat.com/support/errata/RHSA-2011-0196.html	2023-05-15
http://www.ubuntu.com/usn/USN-1042-1	2023-05-15
http://www.vupen.com/english/advisories/2011/0060	2023-05-15
https://access.redhat.com/security/cve/CVE-2010-4645	2011-02-03
https://bugzilla.redhat.com/show_bug.cgi?id=667806	2011-02-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.0 Search vendor "Php" for product "Php" and version "5.2.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.1 Search vendor "Php" for product "Php" and version "5.2.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.2 Search vendor "Php" for product "Php" and version "5.2.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.3 Search vendor "Php" for product "Php" and version "5.2.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.4 Search vendor "Php" for product "Php" and version "5.2.4"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.5 Search vendor "Php" for product "Php" and version "5.2.5"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.6 Search vendor "Php" for product "Php" and version "5.2.6"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.7 Search vendor "Php" for product "Php" and version "5.2.7"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.8 Search vendor "Php" for product "Php" and version "5.2.8"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.9 Search vendor "Php" for product "Php" and version "5.2.9"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.10 Search vendor "Php" for product "Php" and version "5.2.10"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.11 Search vendor "Php" for product "Php" and version "5.2.11"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.12 Search vendor "Php" for product "Php" and version "5.2.12"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.13 Search vendor "Php" for product "Php" and version "5.2.13"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.14 Search vendor "Php" for product "Php" and version "5.2.14"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.15 Search vendor "Php" for product "Php" and version "5.2.15"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.2.16 Search vendor "Php" for product "Php" and version "5.2.16"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.3.0 Search vendor "Php" for product "Php" and version "5.3.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.3.1 Search vendor "Php" for product "Php" and version "5.3.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.3.2 Search vendor "Php" for product "Php" and version "5.3.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.3.3 Search vendor "Php" for product "Php" and version "5.3.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				5.3.4 Search vendor "Php" for product "Php" and version "5.3.4"		-		Affected