Apple tvOS up to 14.4 CFNetwork initialization

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apple tvOS up to 14.4. Affected by this issue is some unknown functionality of the component CFNetwork. Such manipulation leads to initialization. This vulnerability is uniquely identified as CVE-2021-1857. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple tvOS up to 14.4 (Digital Media Player). It has been rated as problematic. Affected by this issue is an unknown code block of the component CFNetwork. The manipulation with an unknown input leads to a initialization vulnerability. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. Impacted is confidentiality.

The weakness was disclosed 04/26/2021 as HT212323 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2021-1857. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

Processing maliciously crafted web content may disclose sensitive user information

Upgrading to version 14.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A memory initialization issue was addressed with improved memory handling.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

CVSSv2info

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

Exploitinginfo

Class: Initialization
CWE: CWE-665
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: tvOS 14.5

Timelineinfo

12/08/2020 🔍
04/26/2021 +138 days 🔍
04/26/2021 +0 days 🔍
04/27/2021 +1 days 🔍
05/01/2021 +4 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT212323
Status: Confirmed

CVE: CVE-2021-1857 (🔍)
GCVE (CVE): GCVE-0-2021-1857
GCVE (VulDB): GCVE-100-174032

Entryinfo

Created: 04/27/2021 10:10
Updated: 05/01/2021 08:47
Changes: 04/27/2021 10:10 (18), 04/27/2021 10:13 (27), 05/01/2021 08:47 (4)
Complete: 🔍
Cache ID: 216::103

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