PCRE 6.9 memory corruption

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

Summaryinfo

A vulnerability categorized as critical has been discovered in PCRE 6.9. Affected by this vulnerability is an unknown functionality. The manipulation results in memory corruption. This vulnerability is known as CVE-2007-1660. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in PCRE 6.9 (Programming Tool Software). Affected is an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Perl-Compatible Regular Expression (PCRE) library before 7.0 does not properly calculate sizes for unspecified "multiple forms of character class", which triggers a buffer overflow that allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code.

The bug was discovered 11/05/2007. The weakness was published 11/07/2007 by Tavis Ormandy with Google Security Team (Website). The advisory is shared for download at us-cert.gov. This vulnerability is traded as CVE-2007-1660 since 03/24/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67588 (Oracle Linux 4 : pcre (ELSA-2007-0968)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165666 (SUSE Enterprise Linux Security Update php4, php5 (SUSE-SA:2008:004)).

Upgrading to version 6.9 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 (38273), Tenable (67588), SecurityFocus (BID 26346†), OSVDB (40764†) and Secunia (SA27598†). Similar entries are available at VDB-3287, VDB-3284, VDB-3285 and VDB-3282. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 67588
Nessus Name: Oracle Linux 4 : pcre (ELSA-2007-0968)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

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: PCRE 6.9

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 🔍
11/07/2007 +1 days 🔍
11/07/2007 +0 days 🔍
11/09/2007 +2 days 🔍
11/13/2007 +4 days 🔍
07/12/2013 +2068 days 🔍
03/16/2015 +612 days 🔍
07/30/2019 +1597 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Researcher: Tavis Ormandy
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1660 (🔍)
GCVE (CVE): GCVE-0-2007-1660
GCVE (VulDB): GCVE-100-39600

OVAL: 🔍

X-Force: 38273
SecurityFocus: 26346 - PCRE Regular Expression Library Multiple Security Vulnerabilities
Secunia: 27598
OSVDB: 40764 - CVE-2007-1660 - PCRE - Buffer Overflow Issue
SecurityTracker: 1018895
Vulnerability Center: 16778 - PCRE 7.3 Remote DoS and Code Execution Vulnerability Related to Multiple Forms of Character Class, High
Vupen: ADV-2007-3725

See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/30/2019 09:15
Changes: 03/16/2015 12:18 (84), 07/30/2019 09:15 (4)
Complete: 🔍
Cache ID: 216:C87:103

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