Apple Mac OS X up to 10.4.10 \x?\d denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple Mac OS X up to 10.4.10. Affected by this issue is some unknown functionality. This manipulation of the argument \x?\d causes denial of service. This vulnerability is handled as CVE-2007-1661. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apple Mac OS X up to 10.4.10 (Operating System). Affected by this vulnerability is some unknown functionality. The manipulation of the argument \x?\d with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect confidentiality, and availability. The summary by CVE is:

Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex patterns in non-UTF-8 mode, which allows context-dependent attackers to obtain sensitive information or cause a denial of service (crash), as demonstrated by the "\X?\d" and "\P{L}?\d" patterns.

The bug was discovered 11/05/2007. The weakness was released 11/07/2007 by Tavis Ormandy with Google Security Team (Website). The advisory is shared at us-cert.gov. This vulnerability is known as CVE-2007-1661 since 03/24/2007. The exploitation appears to be easy. 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 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165048 (SUSE Security Update for pcre (SUSE-SA:2007:062)).

Upgrading to version 10.4.11 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 (38274), Tenable (27629), SecurityFocus (BID 26346†), OSVDB (40761†) and Secunia (SA27538†). Entries connected to this vulnerability are available at VDB-35351, VDB-39605, VDB-39604 and VDB-39603. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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

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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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mac OS X 10.4.11

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

Vendor: apple.com

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

CVE: CVE-2007-1661 (🔍)
GCVE (CVE): GCVE-0-2007-1661
GCVE (VulDB): GCVE-100-39601

OVAL: 🔍

X-Force: 38274
SecurityFocus: 26346 - PCRE Regular Expression Library Multiple Security Vulnerabilities
Secunia: 27538
OSVDB: 40761 - CVE-2007-1661 - PCRE - Information Disclosure Issue
Vulnerability Center: 16781 - PCRE 7.3 Remote DoS and Information Disclosure Vulnerability Related to \\X?\\d and \\P{L}?\\d patterns, Medium
Vupen: ADV-2007-3725

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/30/2019 09:31
Changes: 03/16/2015 12:18 (81), 07/30/2019 09:31 (4)
Complete: 🔍
Cache ID: 216:7E6:103

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

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