PCRE 7.3 denial of service

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

Summaryinfo

A vulnerability labeled as problematic has been found in PCRE 7.3. This affects an unknown part. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2007-1662. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in PCRE 7.3 (Programming Tool Software). Affected by this issue is an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

Perl-Compatible Regular Expression (PCRE) library before 7.3 reads past the end of the string when searching for unmatched brackets and parentheses, which allows context-dependent attackers to cause a denial of service (crash), possibly involving forward references.

The bug was discovered 11/05/2007. The weakness was disclosed 11/07/2007 by Tavis Ormandy with Google Security Team (Website). The advisory is available at us-cert.gov. This vulnerability is handled as CVE-2007-1662 since 03/24/2007. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 27629 (Debian DSA-1399-1 : pcre3 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 7.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (38275), Tenable (27629), SecurityFocus (BID 26346†), OSVDB (40765†) and Secunia (SA27538†). The entries VDB-35351, VDB-39605, VDB-39604 and VDB-39603 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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: 🔍

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Nessus ID: 27629
Nessus Name: Debian DSA-1399-1 : pcre3 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58731
OpenVAS Name: Debian Security Advisory DSA 1399-1 (pcre3)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PCRE 7.3

Timelineinfo

03/24/2007 🔍
11/05/2007 +226 days 🔍
11/05/2007 +0 days 🔍
11/05/2007 +0 days 🔍
11/05/2007 +0 days 🔍
11/06/2007 +1 days 🔍
11/06/2007 +0 days 🔍
11/07/2007 +1 days 🔍
11/07/2007 +0 days 🔍
11/13/2007 +6 days 🔍
03/16/2015 +2680 days 🔍
07/30/2019 +1597 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Researcher: Tavis Ormandy
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-1662 (🔍)
GCVE (CVE): GCVE-0-2007-1662
GCVE (VulDB): GCVE-100-39602

OVAL: 🔍

X-Force: 38275
SecurityFocus: 26346 - PCRE Regular Expression Library Multiple Security Vulnerabilities
Secunia: 27538
OSVDB: 40765 - CVE-2007-1662 - PCRE - Denial-Of-Service Issue
Vulnerability Center: 16783 - PCRE 7.3 Remote Denial of Service due to Error in Searching for Unmatched Brackets or Parentheses, Medium
Vupen: ADV-2007-3725

See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/30/2019 09:35
Changes: 03/16/2015 12:18 (77), 07/30/2019 09:35 (4)
Complete: 🔍
Cache ID: 216:EA9:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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