Apple watchOS up to 6.2.7 WebKit memory corruption

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CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability classified as critical has been found in Apple watchOS up to 6.2.7 (Smartwatch Operating System). Affected is an unknown part of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

The weakness was released 07/15/2020 by 0011 with Zero Day Initiative as HT211291 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2020-9894 since 03/02/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/03/2020). The advisory points out:

An out-of-bounds read was addressed with improved input validation.

Upgrading to version 6.2.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at 158596, 158606, 158607 and 158608.

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CVSSv2infoedit

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

Exploitinginfoedit

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

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: watchOS 6.2.8

Timelineinfoedit

03/02/2020 CVE assigned
07/15/2020 +135 days Advisory disclosed
07/15/2020 +0 days Countermeasure disclosed
07/16/2020 +1 days VulDB entry created
11/03/2020 +110 days VulDB last update

Sourcesinfoedit

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

Advisory: HT211291
Researcher: 0011
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2020-9894 (🔒)
See also: 🔒

Entryinfoedit

Created: 07/16/2020 08:21 PM
Updated: 11/03/2020 03:31 PM
Changes: (8) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a
Complete: 🔍

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