Apple iOS up to 8.1.2 FontParser data processing

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 8.1.2. It has been classified as critical. Affected by this issue is some unknown functionality of the component FontParser. The manipulation leads to data processing. This vulnerability is uniquely identified as CVE-2014-4484. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple iOS up to 8.1.2 (Smartphone Operating System) and classified as critical. This issue affects an unknown code block of the component FontParser. The manipulation with an unknown input leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 (memory corruption and application crash) via a crafted .dfont file.

The weakness was disclosed 01/27/2015 by Gaurav Baruah (PanguTeam) with Google Project Zero as HT204245 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2014-4484 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/07/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A memory corruption issue existed in the handling of .dfont 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.. 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 8.1.3 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 Tenable (81145), SecurityFocus (BID 72327†) and Vulnerability Center (SBV-48325†). us-cert.gov is providing further details. The entries VDB-67778, VDB-67996, VDB-68077 and VDB-68232 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81145
Nessus Name: Apple TV < 7.0.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 8.1.3

Timelineinfo

06/20/2014 🔍
01/27/2015 +221 days 🔍
01/27/2015 +0 days 🔍
01/27/2015 +0 days 🔍
01/27/2015 +0 days 🔍
01/28/2015 +1 days 🔍
01/29/2015 +1 days 🔍
01/30/2015 +1 days 🔍
03/07/2022 +2593 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT204245
Researcher: Gaurav Baruah (PanguTeam)
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4484 (🔍)
GCVE (CVE): GCVE-0-2014-4484
GCVE (VulDB): GCVE-100-68927
SecurityFocus: 72327 - Multiple Apple Products Multiple Security Vulnerabilities
SecurityTracker: 1031650
SecuriTeam: 1031652
Vulnerability Center: 48325 - Apple iOS before 8.1.3 Remote Code Execution or DoS Vulnerability via a Maliciously Crafted .dfont File - CVE-2014-4484, Medium

scip Labs: https://www.scip.ch/en/?labs.20150917
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 01/29/2015 15:41
Updated: 03/07/2022 17:13
Changes: 01/29/2015 15:41 (66), 06/19/2017 07:56 (13), 03/07/2022 17:04 (3), 03/07/2022 17:13 (1)
Complete: 🔍
Cache ID: 216:513:103

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