VDB-134936 · CVE-2019-8576 · HT210120

Apple tvOS up to 12.2.1 Kernel out-of-bounds

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.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 12.2.1 and classified as critical. Affected is an unknown function of the component Kernel. Such manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2019-8576. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 12.2.1 (Digital Media Player). It has been rated as critical. Affected by this issue is an unknown code of the component Kernel. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability.

The weakness was released 05/13/2019 by Security Team with Google Project Zero as HT210120 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2019-8576 since 02/18/2019. The attack needs to be approached locally. A simple authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

An out-of-bounds read was addressed with improved bounds checking.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371785 (Apple macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra Not Installed (HT210119)).

Upgrading to version 12.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-134840, VDB-134841, VDB-134842 and VDB-134843. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Digital Media Player

Vendor

Apple

Name

tvOS

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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 12.3

Timelineinfo

02/18/2019 🔍
05/13/2019 +84 days 🔍
05/13/2019 +0 days 🔍
05/15/2019 +2 days 🔍
09/19/2023 +1588 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210120
Researcher: Security Team
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2019-8576 (🔍)
GCVE (CVE): GCVE-0-2019-8576
GCVE (VulDB): GCVE-100-134936
See also: 🔍

Entryinfo

Created: 05/15/2019 09:24
Updated: 09/19/2023 08:01
Changes: 05/15/2019 09:24 (65), 06/11/2020 14:44 (2), 09/19/2023 08:01 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.