Apple iOS up to 8.1.2 FontParser memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

A vulnerability has been found in Apple iOS up to 8.1.2 (Smartphone Operating System) and classified as critical. This vulnerability affects an unknown code of the component FontParser. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 released 01/27/2015 by Felipe Andres Manzano (PanguTeam) with Apple as HT204245 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability was named CVE-2014-4483 since 06/20/2014. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of 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 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.. 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 vulnerability database at Tenable (81145). Additional details are provided at us-cert.gov. Entries connected to this vulnerability are available at 67778, 67996, 68077 and 68232.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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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

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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: Felipe Andres Manzano (PanguTeam)
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4483 (🔍)
SecurityTracker: 1031650
Vulnerability Center: 48328 - Apple iOS before 8.1.3 Remote Code Execution or DoS Vulnerability via a Maliciously Crafted PDF File - CVE-2014-4483, Medium
SecuriTeam: 1031652
SecurityFocus: 72327 - Multiple Apple Products Multiple Security Vulnerabilities

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

Created: 01/29/2015 15:41
Updated: 03/07/2022 16:57
Changes: 01/29/2015 15:41 (66), 06/19/2017 07:57 (13), 03/07/2022 16:50 (3), 03/07/2022 16:57 (1)
Complete: 🔍

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