About the security content of iOS 12.4.7 - Apple Support

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 12.4.7

Released May 26, 2020

Mail

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 mail message may lead to unexpected memory modification or application termination

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2020-9818: ZecOps.com

Mail

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 mail message may lead to heap corruption

Description: A memory consumption issue was addressed with improved memory handling.

CVE-2020-9819: ZecOps.com

Wi-Fi

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

Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

Description: A memory corruption issue was addressed with improved input validation.

CVE-2020-3843: Ian Beer of Google Project Zero