Apple watchOS up to 6.0.1 AppleFirmwareUpdateKext memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple watchOS up to 6.0.1. Affected is an unknown function of the component AppleFirmwareUpdateKext. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2019-8747. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple watchOS up to 6.0.1 (Smartwatch Operating System) and classified as critical. Affected by this issue is an unknown functionality of the component AppleFirmwareUpdateKext. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in watchOS 6.1. An application may be able to execute arbitrary code with kernel privileges.

The weakness was disclosed 10/29/2019 by Mohamed Ghannam as HT210724 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2019-8747. The attack needs to be approached locally. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available. The advisory points out:

A memory corruption vulnerability was addressed with improved locking.

Upgrading to version 6.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-144570, VDB-144571, VDB-144573 and VDB-144574 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: watchOS 6.1

Timelineinfo

02/18/2019 🔍
10/29/2019 +253 days 🔍
10/29/2019 +0 days 🔍
10/31/2019 +2 days 🔍
01/31/2024 +1553 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210724
Researcher: Mohamed Ghannam
Status: Confirmed

CVE: CVE-2019-8747 (🔍)
GCVE (CVE): GCVE-0-2019-8747
GCVE (VulDB): GCVE-100-144572
See also: 🔍

Entryinfo

Created: 10/31/2019 08:25
Updated: 01/31/2024 10:18
Changes: 10/31/2019 08:25 (46), 10/31/2019 08:30 (17), 01/31/2024 10:18 (4)
Complete: 🔍
Cache ID: 216::103

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