Apple iCloud prior 13.0 on Windows CoreCrypto denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Apple iCloud on Windows. Affected is an unknown function of the component CoreCrypto. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2019-8741. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iCloud on Windows (Cloud Software). It has been classified as problematic. This affects some unknown processing of the component CoreCrypto. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

A denial of service issue was addressed with improved input validation.

The weakness was published 10/29/2019 by Nicky Mouha with NIST as HT210636 as confirmed security advisory (Website). The advisory is shared at support.apple.com. The public release has been coordinated with Apple. This vulnerability is uniquely identified as CVE-2019-8741 since 02/18/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue. The advisory points out:

Processing a large input may lead to a denial of service

Upgrading to version 13.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The security advisory contains the following remark:

A denial of service issue was addressed with improved input validation.

Similar entries are available at VDB-150737, VDB-150761, VDB-150762 and VDB-150763. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: iCloud 13.0

Timelineinfo

02/18/2019 🔍
10/29/2019 +253 days 🔍
10/29/2019 +0 days 🔍
03/01/2020 +124 days 🔍
03/01/2020 +0 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210636
Researcher: Nicky Mouha
Organization: NIST
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-8741 (🔍)
GCVE (CVE): GCVE-0-2019-8741
GCVE (VulDB): GCVE-100-150765
See also: 🔍

Entryinfo

Created: 03/01/2020 13:29
Updated: 03/01/2020 13:34
Changes: 03/01/2020 13:29 (49), 03/01/2020 13:34 (19)
Complete: 🔍
Cache ID: 216::103

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

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