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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Perl up to 5.19. It has been classified as critical. This issue affects some unknown processing of the file regcomp.c. This manipulation causes numeric error. This vulnerability is tracked as CVE-2013-7422. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Perl up to 5.19 (Programming Language Software). Affected by this vulnerability is an unknown code block of the file regcomp.c. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer underflow in regcomp.c in Perl before 5.20, as used in Apple OS X before 10.10.5 and other products, allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a long digit string associated with an invalid backreference within a regular expression.

The weakness was disclosed 08/16/2015 by Andrew (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2013-7422 since 01/27/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 85408 (Mac OS X 10.10.x < 10.10.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196417 (Ubuntu Security Notification for Perl Vulnerabilities (USN-2916-1)).

Upgrading to version 5.20 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (85408), SecurityFocus (BID 75704†) and Vulnerability Center (SBV-52107†). The entries VDB-11563, VDB-69011, VDB-71694 and VDB-76870 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Apple Mac OS X up to 10.10.4

Productinfo

Type

• Programming Language Software

Name

• Perl

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 5.18
• 5.19

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 85408
Nessus Name: Mac OS X 10.10.x < 10.10.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-03 October-15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Perl 5.20
Patch: perl5.git.perl.org

Timelineinfo

01/27/2015 🔍
01/29/2015 +2 days 🔍
01/29/2015 +0 days 🔍
08/16/2015 +199 days 🔍
08/16/2015 +0 days 🔍
08/17/2015 +1 days 🔍
08/17/2015 +0 days 🔍
06/12/2022 +2491 days 🔍

Sourcesinfo

Advisory: USN-2916-1
Researcher: Andrew
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-7422 (🔍)
GCVE (CVE): GCVE-0-2013-7422
GCVE (VulDB): GCVE-100-77257
SecurityFocus: 75704 - Perl CVE-2013-7422 Denial of Service Vulnerability
Vulnerability Center: 52107 - Apple MacOS X 10.10 through 10.10.4 Remote Code Execution or DoS due to Integer Underflow in Perl, Critical

See also: 🔍

Entryinfo

Created: 08/17/2015 10:13
Updated: 06/12/2022 12:12
Changes: 08/17/2015 10:13 (58), 10/15/2017 11:39 (14), 06/12/2022 12:04 (4), 06/12/2022 12:12 (1)
Complete: 🔍
Cache ID: 216:91F:103

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

Discussion

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