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Appleのセキュリティのページから引用すると

Wi-Fi
Available for: iPhone 8, iPhone 8 Plus, and iPhone X
Not impacted: iPhone 7, iPhone 7 Plus, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5s, iPad Air and later, and iPod Touch 6th generation
↑7以前に関しては13077と13078については影響ないって明記
Impact: An attacker in Wi-Fi range may force nonce reuse in WPA unicast/PTK clients (Key Reinstallation Attacks - KRACK)
↑13077の話してる
Description: A logic issue existed in the handling of state transitions. This was addressed with improved state management.
CVE-2017-13077: Mathy Vanhoef of the imec-DistriNet group at KU Leuven
CVE-2017-13078: Mathy Vanhoef of the imec-DistriNet group at KU Leuven
↑8以降についてはこのパッチで13077と13078の問題に対応させたよって書いてる
Entry updated November 3, 2017

Wi-Fi
Available for: iPhone 7 and later, and iPad Pro 9.7-inch (early 2016) and later
Impact: An attacker in Wi-Fi range may force nonce reuse in WPA multicast/GTK clients (Key Reinstallation Attacks - KRACK)
↑13078と13080の話してる←ココ重要
Description: A logic issue existed in the handling of state transitions. This was addressed with improved state management.
CVE-2017-13080: Mathy Vanhoef of the imec-DistriNet group at KU Leuven
↑7以降に対してはこのパッチで問題に対応させたよって書いてる
Entry updated November 3, 2017

つまり、どういうことなんだぜ?