VDB-150613 · CVE-2020-3862 · HT210948

Apple iCloud up to 7.16 on Windows WebKit memory corruption

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Apple iCloud up to 7.16 on Windows. Affected by this issue is some unknown functionality of the component WebKit. This manipulation causes memory corruption. This vulnerability appears as CVE-2020-3862. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iCloud up to 7.16 on Windows (Cloud Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

A denial of service issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, tvOS 13.3.1, Safari 13.0.5, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. A malicious website may be able to cause a denial of service.

The weakness was presented 01/28/2020 with Google as HT210948 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2020-3862. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

A denial of service issue was addressed with improved memory handling.

Upgrading to version 7.17 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-150608, VDB-150609, VDB-150610 and VDB-150611 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Cloud Software

Vendor

Apple

Name

iCloud

Version

License

free

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iCloud 7.17

Timelineinfo

12/18/2019 🔍
01/28/2020 +41 days 🔍
01/28/2020 +0 days 🔍
02/28/2020 +31 days 🔍
05/11/2025 +1899 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210948
Organization: Google
Status: Confirmed

CVE: CVE-2020-3862 (🔍)
GCVE (CVE): GCVE-0-2020-3862
GCVE (VulDB): GCVE-100-150613
See also: 🔍

Entryinfo

Created: 02/28/2020 13:43
Updated: 05/11/2025 03:57
Changes: 02/28/2020 13:43 (47), 02/28/2020 13:48 (17), 04/06/2024 14:44 (18), 05/11/2025 03:57 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.