Apple Mac OS X up to 10.10.3 FontParser TrueTypeScaler Font File memory corruption

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-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.10.3. It has been rated as critical. This affects the function TrueTypeScaler of the component FontParser. The manipulation as part of Font File leads to memory corruption. This vulnerability is referenced as CVE-2015-3719. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.10.3 (Operating System). It has been rated as critical. This issue affects the function TrueTypeScaler of the component FontParser. The manipulation as part of a Font File 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:

TrueTypeScaler in FontParser in Apple iOS before 8.4 and OS X before 10.10.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font file, a different vulnerability than CVE-2015-3694.

The weakness was published 07/03/2015 by Peter Rutenbar with Zero Day Initiative (Website). The advisory is shared at lists.apple.com. The identification of this vulnerability is CVE-2015-3719 since 05/07/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 84488 (Mac OS X 10.10.x < 10.10.4 Multiple Vulnerabilities (GHOST) (Logjam)), 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 123680 (Apple Mac OS X v10.10.4 and Security Update 2015-005 Not Installed (APPLE-SA-2015-06-30-2)).

Upgrading to version 10.10.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (84488), SecurityFocus (BID 75491†) and Vulnerability Center (SBV-50910†). Similar entries are available at VDB-75568, VDB-76185, VDB-76186 and VDB-76187. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

Website

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 84488
Nessus Name: Mac OS X 10.10.x < 10.10.4 Multiple Vulnerabilities (GHOST) (Logjam)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 July15
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: Mac OS X 10.10.4

Timelineinfo

05/07/2015 🔍
06/30/2015 +54 days 🔍
06/30/2015 +0 days 🔍
07/01/2015 +1 days 🔍
07/02/2015 +1 days 🔍
07/03/2015 +1 days 🔍
07/03/2015 +0 days 🔍
11/25/2024 +3433 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: lists.apple.com
Researcher: Peter Rutenbar
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3719 (🔍)
GCVE (CVE): GCVE-0-2015-3719
GCVE (VulDB): GCVE-100-76265
SecurityFocus: 75491 - Apple Mac OS X and iOS Multiple Security Vulnerabilities
SecurityTracker: 1032760
Vulnerability Center: 50910 - Apple iOS <8.4 Remote Code Execution or DoS in FontParser - CVE-2015-3719, Medium

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

Entryinfo

Created: 07/03/2015 10:33
Updated: 11/25/2024 17:19
Changes: 07/03/2015 10:33 (57), 07/03/2017 08:36 (16), 05/23/2022 08:31 (3), 05/23/2022 08:32 (1), 11/25/2024 17:19 (18)
Complete: 🔍
Cache ID: 216:0E9:103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!