CVE-2021-1844

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 02-04-2021 09:15

Last modified: - 26-04-2022 07:25

Total changes: - 7

Description

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

Required

User interaction

8.8

Base score

2.8

5.9

Exploitability score

Impact score

Verification logic

vendor=apple AND product=safari AND versionEndExcluding=14.0.3

vendor=apple AND product=ipad_os AND versionEndExcluding=14.4.1

vendor=apple AND product=iphone_os AND versionEndExcluding=14.4.1

vendor=apple AND product=macos AND versionEndExcluding=11.2.3

vendor=apple AND product=tvos AND versionEndExcluding=14.5

vendor=apple AND product=watchos AND versionEndExcluding=7.3.2

vendor=Debian AND product=debian_linux AND version=10.0

vendor=fedoraproject AND product=fedora AND version=33

Reference

https://support.apple.com/en-us/HT212222
https://support.apple.com/en-us/HT212223
https://support.apple.com/en-us/HT212220
https://support.apple.com/en-us/HT212221
FEDORA-2021-864dc37032-Mailing List, Third Party Advisory
https://support.apple.com/kb/HT212323
20210427 APPLE-SA-2021-04-26-6 tvOS 14.5-Mailing List, Third Party Advisory
DSA-4923-Third Party Advisory

Keywords

CVE-2021-1844

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-1844

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures