Apple Mac OS X prior 10.7.0 numeric error

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in Apple Mac OS X (Operating System). This affects some unknown processing. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Integer signedness error in Apple Type Services (ATS) in Apple Mac OS X 10.7 before 10.7.2 allows remote attackers to execute arbitrary code via a crafted embedded Type 1 font in a document.

The weakness was shared 10/14/2011 by Erling Ellingsen with Facebook (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2011-3437 since 09/13/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56480 (Mac OS X 10.7.x < 10.7.2 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 119638 (Apple Mac OS X Lion v10.7.2 and Security Update 2011-006 Not Installed (APPLE-SA-2011-10-12-3)).

Upgrading to version 10.7.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (70571), Tenable (56480), SecurityFocus (BID 50085†), OSVDB (76356†) and Vulnerability Center (SBV-39348†).








CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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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: 🔍



VulDB Base Score: 🔍
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Class: Numeric error
CWE: CWE-189

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍


Nessus ID: 56480
Nessus Name: Mac OS X 10.7.x < 10.7.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802336
OpenVAS Name: Mac OS X v10.6.8 Multiple Vulnerabilities (2011-006)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mac OS X 10.7.0


09/13/2011 🔍
10/12/2011 +29 days 🔍
10/12/2011 +0 days 🔍
10/14/2011 +2 days 🔍
10/14/2011 +0 days 🔍
04/25/2013 +559 days 🔍
03/23/2015 +697 days 🔍
11/24/2021 +2438 days 🔍



Researcher: Erling Ellingsen
Organization: Facebook
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-3437 (🔍)
X-Force: 70571
SecurityFocus: 50085 - Apple Mac OS X Prior to 10.7.2 Multiple Security Vulnerabilities
OSVDB: 76356
Vulnerability Center: 39348 - Apple Mac OS X Apple Type Services Integer Signedness Error Allows Remote Code Execution, Critical

scip Labs:


Created: 03/23/2015 04:50 PM
Updated: 11/24/2021 04:11 AM
Changes: 03/23/2015 04:50 PM (66), 04/28/2017 09:55 AM (7), 11/24/2021 04:11 AM (3)
Complete: 🔍
Cache ID: 3:982:40


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