Apple iCloud up to 10.9.2 on Windows WebKit memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability was found in Apple iCloud up to 10.9.2 on Windows (Cloud Software) and classified as critical. This issue affects some unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, watchOS 6.2, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Processing maliciously crafted web content may lead to arbitrary code execution.

The weakness was shared 03/25/2020 as HT211106 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2020-3895 since 12/18/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/06/2020). The advisory points out:

A memory corruption issue was addressed with improved memory handling.

Upgrading to version 10.9.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 152523, 152546, 152553 and 152584 are related to this item.

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CVSSv3infoedit

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

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

Interest: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: iCloud 10.9.3

Timelineinfoedit

12/18/2019 🔍
03/25/2020 +98 days 🔍
03/25/2020 +0 days 🔍
04/02/2020 +8 days 🔍
10/06/2020 +187 days 🔍

Sourcesinfoedit

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

Advisory: HT211106
Status: Confirmed

CVE: CVE-2020-3895 (🔍)
See also: 🔍

Entryinfoedit

Created: 04/02/2020 12:02 PM
Updated: 10/06/2020 04:29 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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