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appleAppleAPPLE:852BF4CFEE89DF537390F83B28A0C41D
HistoryJun 14, 2021 - 12:00 a.m.

About the security content of iOS 12.5.4

2021-06-1400:00:00
support.apple.com
15

10 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

75.3%

About the security content of iOS 12.5.4

This document describes the security content of iOS 12.5.4.

About Apple security updates

For our customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

iOS 12.5.4

Released June 14, 2021

Security

Available for: iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation)

Impact: Processing a maliciously crafted certificate may lead to arbitrary code execution

Description: A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code.

CVE-2021-30737: xerub

WebKit

Available for: iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Description: A memory corruption issue was addressed with improved state management.

CVE-2021-30761: an anonymous researcher

WebKit

Available for: iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Description: A use after free issue was addressed with improved memory management.

CVE-2021-30762: an anonymous researcher

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Published Date: November 06, 2023

CPENameOperatorVersion
ioslt12.5.4