PHP 5.3.0/5.3.1/5.3.2 numeric error

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

Summaryinfo

A vulnerability has been found in PHP 5.3.0/5.3.1/5.3.2 and classified as critical. Affected by this vulnerability is an unknown functionality. This manipulation causes numeric error. The identification of this vulnerability is CVE-2010-1866. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical was found in PHP 5.3.0/5.3.1/5.3.2 (Programming Language Software). Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

The weakness was shared 05/07/2010 by Stefan Esser (Website). It is possible to read the advisory at php-security.org. This vulnerability is known as CVE-2010-1866 since 05/07/2010. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 56459 (GLSA-201110-06 : PHP: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 12357 (PHP HTTP Chunked Encoding Processing Signedness).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (33920), Tenable (56459), SecurityFocus (BID 39877†) and Vulnerability Center (SBV-25873†). The entries VDB-53487, VDB-53395, VDB-53394 and VDB-53391 are related to this item. Be aware that VulDB is the high quality source for 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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

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: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56459
Nessus Name: GLSA-201110-06 : PHP: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 100617
OpenVAS Name: PHP php_dechunk() HTTP Chunked Encoding Integer Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/02/2010 🔍
05/07/2010 +5 days 🔍
05/07/2010 +0 days 🔍
05/07/2010 +0 days 🔍
05/07/2010 +0 days 🔍
05/27/2010 +20 days 🔍
03/19/2015 +1757 days 🔍
01/25/2025 +3600 days 🔍

Sourcesinfo

Product: php.org

Advisory: php-security.org
Researcher: Stefan Esser
Status: Not defined

CVE: CVE-2010-1866 (🔍)
GCVE (CVE): GCVE-0-2010-1866
GCVE (VulDB): GCVE-100-53119

OVAL: 🔍

SecurityFocus: 39877 - PHP 'php_dechunk()' HTTP Chunked Encoding Integer Overflow Vulnerability
Vulnerability Center: 25873 - PHP 5.3 through 5.3.2 Dechunk Filter Remote DoS and Memory Corruption Vulnerability, Medium

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

Entryinfo

Created: 03/19/2015 12:22
Updated: 01/25/2025 22:41
Changes: 03/19/2015 12:22 (55), 02/25/2017 10:23 (14), 09/13/2021 08:44 (3), 01/04/2025 14:18 (20), 01/25/2025 22:41 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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