CVE-2021-1821 - Vulnerability Details - OpenCVE

Description

A logic issue was addressed with improved state management. This issue is fixed in watchOS 7.6, macOS Big Sur 11.5. Visiting a maliciously crafted webpage may lead to a system denial of service.

Published: 2021-10-28

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Apple

macOS

affected

Version	Status	Constraints
`unspecified`	affected	< 11.5

Apple

macOS

affected

Version	Status	Constraints
`unspecified`	affected	< 7.6

Configuration 1 [-]

OR	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:watchos::::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-7285	A logic issue was addressed with improved state management. This issue is fixed in watchOS 7.6, macOS Big Sur 11.5. Visiting a maliciously crafted webpage may lead to a system denial of service.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.0039.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://support.apple.com/en-us/HT212602
https://support.apple.com/en-us/HT212605

History

No history.

Subscriptions

Apple Macos Watchos

MITRE

Status: PUBLISHED

Assigner: apple

Published: 2021-10-28T18:16:59.000Z

Updated: 2024-08-03T16:25:06.259Z

Reserved: 2020-12-08T00:00:00.000Z

Link: CVE-2021-1821

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-10-28T19:15:08.667

Modified: 2024-11-21T05:45:10.690

Link: CVE-2021-1821

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

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