Apple tvOS up to 11.2.5 CoreText 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.
8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 11.2.5. It has been rated as critical. Affected by this issue is some unknown functionality of the component CoreText. The manipulation leads to memory corruption. This vulnerability is handled as CVE-2018-4124. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability was found in Apple tvOS up to 11.2.5 (Digital Media Player). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component CoreText. 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.

The bug was discovered 02/19/2018. The weakness was published 02/19/2018 as HT208536 as confirmed security update (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2018-4124 since 01/02/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 107071 (macOS 10.13.3 Supplemental Update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370782 (Apple macOS High Sierra 10.13.3 Supplemental Update Not Installed (HT208535)).

Upgrading to version 11.2.6 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 (107071). Similar entries are available at VDB-113603, VDB-113604 and VDB-113606. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 107071
Nessus Name: macOS 10.13.3 Supplemental Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841792
OpenVAS Name: Apple MacOSX Memory Corruption Vulnerability (HT208535)
OpenVAS File: 🔍
OpenVAS 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: tvOS 11.2.6

Timelineinfo

01/02/2018 🔍
02/19/2018 +48 days 🔍
02/19/2018 +0 days 🔍
02/19/2018 +0 days 🔍
02/20/2018 +1 days 🔍
02/28/2018 +8 days 🔍
04/03/2018 +34 days 🔍
02/08/2023 +1772 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208536
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4124 (🔍)
GCVE (CVE): GCVE-0-2018-4124
GCVE (VulDB): GCVE-100-113605
SecurityFocus: 103066
SecurityTracker: 1040396

See also: 🔍

Entryinfo

Created: 02/20/2018 01:16 PM
Updated: 02/08/2023 02:56 PM
Changes: 02/20/2018 01:16 PM (65), 01/07/2020 09:08 AM (12), 02/04/2021 11:21 AM (3), 02/08/2023 02:56 PM (3)
Complete: 🔍
Cache ID: 18:01E:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!