-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2018-06-01-4 iOS 11.4 iOS 11.4 addresses the following: Bluetooth Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to elevate privileges Description: A buffer overflow was addressed with improved size validation. CVE-2018-4215: Abraham Masri (@cheesecakeufo) Contacts Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted vcf file may lead to a denial of service Description: A validation issue existed in the handling of phone numbers. This issue was addressed with improved validation of phone numbers. CVE-2018-4100: Abraham Masri (@cheesecakeufo) FontParser Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved validation. CVE-2018-4211: Proteas of Qihoo 360 Nirvan Team iBooks Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker in a privileged network position may be able to spoof password prompts in iBooks Description: An input validation issue was addressed with improved input validation. CVE-2018-4202: Jerry Decime Kernel Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker in a privileged position may be able to perform a denial of service attack Description: A denial of service issue was addressed with improved validation. CVE-2018-4249: Kevin Backhouse of Semmle Ltd. Kernel Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to execute arbitrary code with kernel privileges Description: A buffer overflow was addressed with improved bounds checking. CVE-2018-4241: Ian Beer of Google Project Zero CVE-2018-4243: Ian Beer of Google Project Zero libxpc Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to gain elevated privileges Description: A logic issue was addressed with improved validation. CVE-2018-4237: Samuel Groß (@5aelo) working with Trend Micro's Zero Day Initiative Magnifier Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A person with physical access to an iOS device may be able to view the last image used in Magnifier from the lockscreen Description: A permissions issue existed in Magnifier. This was addressed with additional permission checks. CVE-2018-4239: an anonymous researcher Mail Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker may be able to exfiltrate the contents of S/MIME-encrypted e-mail Description: An issue existed in the handling of encrypted Mail. This issue was addressed with improved isolation of MIME in Mail. CVE-2018-4227: Damian Poddebniak of Münster University of Applied Sciences, Christian Dresen of Münster University of Applied Sciences, Jens Müller of Ruhr University Bochum, Fabian Ising of Münster University of Applied Sciences, Sebastian Schinzel of Münster University of Applied Sciences, Simon Friedberger of KU Leuven, Juraj Somorovsky of Ruhr University Bochum, Jörg Schwenk of Ruhr University Bochum Messages Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to conduct impersonation attacks Description: An injection issue was addressed with improved input validation. CVE-2018-4235: Anurodh Pokharel of Salesforce.com Messages Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted message may lead to a denial of service Description: This issue was addressed with improved message validation. CVE-2018-4240: Sriram (@Sri_Hxor) of PrimeFort Pvt. Ltd CVE-2018-4250: Metehan Yılmaz of Sesim Sarpkaya Safari Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may be able to cause a denial of service Description: A denial of service issue was addressed with improved validation. CVE-2018-4247: François Renaud, Jesse Viviano of Verizon Enterprise Solutions Security Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to read a persistent account identifier Description: An authorization issue was addressed with improved state management. CVE-2018-4223: Abraham Masri (@cheesecakeufo) Security Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Users may be tracked by malicious websites using client certificates Description: An issue existed in the handling of S-MIME certificaties. This issue was addressed with improved validation of S-MIME certificates. CVE-2018-4221: Damian Poddebniak of Münster University of Applied Sciences, Christian Dresen of Münster University of Applied Sciences, Jens Müller of Ruhr University Bochum, Fabian Ising of Münster University of Applied Sciences, Sebastian Schinzel of Münster University of Applied Sciences, Simon Friedberger of KU Leuven, Juraj Somorovsky of Ruhr University Bochum, Jörg Schwenk of Ruhr University Bochum Security Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to read a persistent device identifier Description: An authorization issue was addressed with improved state management. CVE-2018-4224: Abraham Masri (@cheesecakeufo) Security Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to modify the state of the Keychain Description: An authorization issue was addressed with improved state management. CVE-2018-4225: Abraham Masri (@cheesecakeufo) Security Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to view sensitive user information Description: An authorization issue was addressed with improved state management. CVE-2018-4226: Abraham Masri (@cheesecakeufo) Siri Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A person with physical access to an iOS device may be able to enable Siri from the lock screen Description: An issue existed with Siri permissions. This was addressed with improved permission checking. CVE-2018-4238: Baljinder Singh, Muhammad khizer javed, Onur Can BIKMAZ (@CanBkmaz) of Mustafa Kemal University Siri Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A person with physical access to an iOS device may be able to use Siri to read notifications of content that is set not to be displayed at the lock screen Description: An issue existed with Siri permissions. This was addressed with improved permission checking. CVE-2018-4252: Hunter Byrnes, Martin Winkelmann (@Winkelmannnn) Siri Contacts Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker with physical access to a device may be able to see private contact information Description: An issue existed with Siri permissions. This was addressed with improved permission checking. CVE-2018-4244: an anonymous researcher UIKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted text file may lead to a denial of service Description: A validation issue existed in the handling of text. This issue was addressed with improved validation of text. CVE-2018-4198: Hunter Byrnes WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Visiting a malicious website may lead to address bar spoofing Description: An inconsistent user interface issue was addressed with improved state management. CVE-2018-4188: YoKo Kho (@YoKoAcc) of Mitra Integrasi Informatika, PT WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2018-4201: an anonymous researcher CVE-2018-4218: Natalie Silvanovich of Google Project Zero CVE-2018-4233: Samuel Groß (@5aelo) working with Trend Micro's Zero Day Initiative WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2018-4199: Alex Plaskett, Georgi Geshev, Fabi Beterke, and Nils of MWR Labs working with Trend Micro's Zero Day Initiative WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Visiting a maliciously crafted website may lead to cookies being overwritten Description: A permissions issue existed in the handling of web browser cookies. This issue was addressed with improved restrictions. CVE-2018-4232: an anonymous researcher, Aymeric Chaib WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A race condition was addressed with improved locking. CVE-2018-4192: Markus Gaasedelen, Nick Burnett, and Patrick Biernat of Ret2 Systems, Inc working with Trend Micro's Zero Day Initiative WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4214: found by OSS-Fuzz WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4204: found by OSS-Fuzz, Richard Zhu (fluorescence) working with Trend Micro's Zero Day Initiative WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved memory handling. CVE-2018-4246: found by OSS-Fuzz WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Visiting a maliciously crafted website may leak sensitive data Description: Credentials were unexpectedly sent when fetching CSS mask images. This was addressed by using a CORS-enabled fetch method. CVE-2018-4190: Jun Kokatsu (@shhnjk) WebKit Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2018-4222: Natalie Silvanovich of Google Project Zero Installation note: This update is available through iTunes and Software Update on your iOS device, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an Internet connection and have installed the latest version of iTunes from https://www.apple.com/itunes/ iTunes and Software Update on the device will automatically check Apple's update server on its weekly schedule. When an update is detected, it is downloaded and the option to be installed is presented to the user when the iOS device is docked. We recommend applying the update immediately if possible. Selecting Don't Install will present the option the next time you connect your iOS device. The automatic update process may take up to a week depending on the day that iTunes or the device checks for updates. You may manually obtain the update via the Check for Updates button within iTunes, or the Software Update on your device. To check that the iPhone, iPod touch, or iPad has been updated: * Navigate to Settings * Select General * Select About. The version after applying this update will be "iOS 11.4". Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQJdBAEBCABHFiEEWpnGpHhyhjM9LuGIyxcaHpDFUHMFAlsRa1ApHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQyxcaHpDFUHObHBAA jBRwdrK3Eks7V798k16MQFOvlqkofZWO3D+Qxb5OSzxixGy0r/vml78tnerJ546C p9UrL/1IxH1PERiWevubg6nbWFstBrOhY0FWLiope9oLAMB92iMM/7a+O/6EHjOc 9p6Y/Bud0OwFHEoJmN4HLGMUubm1uTAdalXSmfanxuFvjpxAeczYvW/+wAblOnHr KfclXy68dfUlW0NMP0kbQwnk1lVrb8QKEeayYli19c8zSVC38eYyKYZwhRC37yWT ViBRSz9zVvgJQKX4JgjV6cRO3uIFZX+sksr6VdMM0nHjsTUT6Mc+IAe9Is3YlJCO x0H8+WeloeKrwNDs60Grz7tRNVpevIlInLEQJkuoOD3niWqzt0Q40IzCNlgd8FBv ZB5iencgWy/ObRJSgoOq29EIlt+KEb9nSJx3h6kByo0ZxYhSVrDm44cHzCF0+/zN vY4XR3hJpc1S3ySiSkWHIhqjPAEP7cb/D7Az/5SGgle8cklem5haOdzAkeOHnzim laKEg+F3vue6W+n9iv0x0byVBhC5Xr1iNuRh7+uor5TIVPR2s4moWOWvyTruG2Kk RLlL700y2OZl/04nTgxxShCwLygXiKd07nuFIh4fKiMcGw31HKx1Choof6sPHqzo Grg2dx9YQXTCTIsdDNG581MIwzVvJPLSM5OeNsHQEd0= =7ZCv -----END PGP SIGNATURE-----
