PT-2021-5774 · Apple+8 · Watchos+15

Published 2021-05-24 · Updated 2021-11-09 · CVE-2021-30689

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Apple iOS versions prior to 14.6 Apple iPadOS versions prior to 14.6 Apple tvOS versions prior to 14.6 Apple Safari versions prior to 14.1.1 Apple macOS Big Sur versions prior to 11.4 Apple watchOS versions prior to 7.5

Description A logic issue was addressed with improved state management. Processing maliciously crafted web content may lead to universal cross site scripting. The issue is related to the WebKit module, which is used for displaying web pages. Exploitation of this issue may allow a remote attacker to impact data integrity using malicious web content.

Recommendations For Apple iOS versions prior to 14.6, update to iOS 14.6 or later. For Apple iPadOS versions prior to 14.6, update to iPadOS 14.6 or later. For Apple tvOS versions prior to 14.6, update to tvOS 14.6 or later. For Apple Safari versions prior to 14.1.1, update to Safari 14.1.1 or later. For Apple macOS Big Sur versions prior to 11.4, update to macOS Big Sur 11.4 or later. For Apple watchOS versions prior to 7.5, update to watchOS 7.5 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALSA-2021:4381

BDU:2022-00223

CESA-2021_4381

CVE-2021-30689

DSA-4945-1

MGASA-2021-0400

OPENSUSE-SU-2021:1101-1

OPENSUSE-SU-2021:2598-1

OPENSUSE-SU-2021_1101-1

OPENSUSE-SU-2021_2598-1

RHSA-2021:4381

RHSA-2021_4381

RHSA-2025:10364

RLSA-2021:4381

SUSE-SU-2021:2598-1

SUSE-SU-2021:2600-1

SUSE-SU-2021:2762-1

USN-5024-1

Affected Products

Almalinux

Astra Linux

Centos

Linuxmint

Apple Macos

Red Hat

Rocky Linux

Safari

Suse

Ubuntu

Webkit

Ios

Ipados

Macos Big Sur

Tvos

Watchos

References · 167

• https://cve.org/CVERecord?id=CVE-2021-30689 · Security Note
• https://ubuntu.com/security/CVE-2021-21775 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-30720 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4945-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5024-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21779 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-30665 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2598-1 · Vendor Advisory
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2762-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30689 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00223 · Security Note
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0114SE47 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2021-4381.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-4381.html · Vendor Advisory