Summaryinfo

A vulnerability classified as critical has been found in Apple Mac OS X 10.8.5/10.9.5/10.10/10.10.1. This affects an unknown function of the component FontParser. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2014-4483. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X 10.8.5/10.9.5/10.10/10.10.1 (Operating System). This issue affects some unknown processing of the component FontParser. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in FontParser in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted font file in a PDF document.

The weakness was shared 01/27/2015 with Apple as HT204244 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2014-4483 since 06/20/2014. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A buffer overflow existed in the handling of font files. This issue was addressed through improved bounds checking.

The vulnerability scanner Nessus provides a plugin with the ID 81145 (Apple TV < 7.0.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123193 (Apple Mac OS X v10.10.2 and Security Update 2015-001 Not Installed (APPLE-SA-2015-01-27-4)).

Upgrading to version 10.10.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (100498), Tenable (81145) and SecurityFocus (BID 70273†). us-cert.gov is providing further details. The entries VDB-67775, VDB-67776, VDB-67777 and VDB-67778 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Apple

Name

• Mac OS X

Version

• 10.8.5
• 10.9.5
• 10.10
• 10.10.1

License

• commercial

Support

• end of life

Website

• Vendor: https://www.apple.com/

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