PHP 5.1.2 string.c substr_compare offset resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in PHP 5.1.2 and classified as problematic. This affects the function substr_compare of the file string.c. This manipulation of the argument offset causes resource management. This vulnerability is handled as CVE-2006-1991. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in PHP 5.1.2 (Programming Language Software). It has been declared as problematic. Affected by this vulnerability is the function substr_compare of the file string.c. The manipulation of the argument offset with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (memory access violation) via an out-of-bounds offset argument.

The bug was discovered 04/24/2006. The weakness was released 04/24/2006 (Website). It is possible to read the advisory at secunia.com. This vulnerability is known as CVE-2006-1991 since 04/24/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 21350 (GLSA-200605-08 : 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 and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (26003), Tenable (21350), OSVDB (24946†), Secunia (SA20052†) and SecurityTracker (ID 1015979†). Entries connected to this vulnerability are available at VDB-2185 and VDB-36950. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 21350
Nessus Name: GLSA-200605-08 : PHP: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

04/24/2006 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
04/24/2006 +0 days 🔍
05/08/2006 +14 days 🔍
05/13/2006 +5 days 🔍
05/16/2006 +3 days 🔍
03/12/2015 +3222 days 🔍
06/18/2019 +1559 days 🔍

Sourcesinfo

Product: php.org

Advisory: secunia.com⛔
Status: Not defined

CVE: CVE-2006-1991 (🔍)
GCVE (CVE): GCVE-0-2006-1991
GCVE (VulDB): GCVE-100-29851
X-Force: 26003
Secunia: 20052
OSVDB: 24946 - CVE-2006-1991 - PHP - Denial-Of-Service Issue
SecurityTracker: 1015979
Vulnerability Center: 11435 - PHP 4.4.2 and 5.1.2 Denial of Service via Out of Bounds Offset Argument Vulnerability, Medium
Vupen: ADV-2006-1500

See also: 🔍

Entryinfo

Created: 03/12/2015 12:19
Updated: 06/18/2019 07:14
Changes: 03/12/2015 12:19 (68), 06/18/2019 07:14 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!