Apple tvOS up to 9.x Kernel out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apple tvOS up to 9.x. The impacted element is an unknown function of the component Kernel. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2016-4774. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple tvOS up to 9.x (Digital Media Player). It has been rated as critical. Affected by this issue is an unknown code block 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, and availability.

The weakness was disclosed 09/20/2016 by YoungJin Yoon as HT207142 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2016-4774 since 05/11/2016. The exploitation is known to be easy. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple out-of-bounds read issues existed that led to the disclosure of kernel memory. These were addressed through improved input validation.

The vulnerability scanner Nessus provides a plugin with the ID 93776 (Apple TV < 10 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r.

Upgrading to version 10 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 (93776) and SecurityFocus (BID 93054†). The entries VDB-91603, VDB-91618, VDB-91993 and VDB-91997 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93776
Nessus Name: Apple TV < 10 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64377
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 September-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 10

Timelineinfo

05/11/2016 🔍
09/20/2016 +132 days 🔍
09/20/2016 +0 days 🔍
09/20/2016 +0 days 🔍
09/25/2016 +5 days 🔍
09/26/2016 +1 days 🔍
09/28/2016 +2 days 🔍
09/21/2022 +2184 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207142
Researcher: YoungJin Yoon
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4774 (🔍)
GCVE (CVE): GCVE-0-2016-4774
GCVE (VulDB): GCVE-100-92132
SecurityFocus: 93054 - Apple iOS/tvOS/MacOS/watchOS Multiple Security Vulnerabilities
SecurityTracker: 1036858

See also: 🔍

Entryinfo

Created: 09/26/2016 12:07
Updated: 09/21/2022 09:31
Changes: 09/26/2016 12:07 (67), 04/26/2019 09:57 (13), 09/21/2022 09:31 (4)
Complete: 🔍
Cache ID: 216::103

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