PHP 4.4.2/5.1.2 wordwrap length heap-based overflow

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

Summaryinfo

A vulnerability, which was classified as critical, has been found in PHP 4.4.2/5.1.2. The impacted element is the function wordwrap. This manipulation of the argument length causes heap-based overflow. This vulnerability is registered as CVE-2006-1990. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHP 4.4.2/5.1.2 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is the function wordwrap. The manipulation of the argument length with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the wordwrap function in string.c in PHP 4.4.2 and 5.1.2 might allow context-dependent attackers to execute arbitrary code via certain long arguments that cause a small buffer to be allocated, which triggers a heap-based buffer overflow in a memcpy function call, a different vulnerability than CVE-2002-1396.

The weakness was published 04/25/2006 by Leon Juranic (Website). The advisory is shared at infigo.hr. This vulnerability is known as CVE-2006-1990 since 04/24/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 21602 (Mandrake Linux Security Advisory : php (MDKSA-2006:091)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117691 (CentOS Security Update for PHP (CESA-2006:0568)).

Upgrading to version 5.1.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at php.net. The best possible mitigation is suggested to be upgrading to the latest version. 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 (26001), Tenable (21602), OSVDB (24946†), Secunia (SA20676†) and SecurityTracker (ID 1015979†). Similar entries are available at VDB-2422, VDB-29851, VDB-30809 and VDB-36950. 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: 🔍
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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: 🔍
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Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21602
Nessus Name: Mandrake Linux Security Advisory : php (MDKSA-2006:091)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56723
OpenVAS Name: Gentoo Security Advisory GLSA 200605-08 (php)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 5.1.3
Patch: php.net

Timelineinfo

04/24/2006 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/25/2006 +1 days 🔍
04/25/2006 +0 days 🔍
05/02/2006 +6 days 🔍
05/16/2006 +14 days 🔍
05/24/2006 +8 days 🔍
05/27/2006 +3 days 🔍
06/15/2006 +19 days 🔍
03/12/2021 +5384 days 🔍

Sourcesinfo

Product: php.org

Advisory: infigo.hr
Researcher: Leon Juranic
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-1990 (🔍)
GCVE (CVE): GCVE-0-2006-1990
GCVE (VulDB): GCVE-100-2185

OVAL: 🔍

X-Force: 26001 - PHP wordwrap() long string buffer overflow, High Risk
Secunia: 20676 - SUSE update for php4 / php5, Less Critical
OSVDB: 24946 - PHP substr_compare() Function length Parameter Memory Corruption DoS
SecurityTracker: 1015979 - PHP wordwrap(), array_fill(), and substr_compare() Bugs Let Remote Users Deny Service or Execute Arbitrary Code
Vulnerability Center: 11434 - PHP 4.4.2 and 5.1.2 Code Execution via Long Arguments, High
Vupen: ADV-2006-1500

See also: 🔍

Entryinfo

Created: 05/02/2006 14:57
Updated: 03/12/2021 18:31
Changes: 05/02/2006 14:57 (91), 08/25/2017 19:24 (9), 03/12/2021 18:31 (3)
Complete: 🔍
Cache ID: 216::103

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

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