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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1285 iOS 11.3.1 26 April 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: iOS Publisher: Apple Operating System: Apple iOS Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Increased Privileges -- Existing Account Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-4206 CVE-2018-4204 CVE-2018-4200 CVE-2018-4187 Original Bulletin: https://support.apple.com/en-us/HT208743 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 APPLE-SA-2018-04-24-1 iOS 11.3.1 iOS 11.3.1 is now available and addresses the following: Crash Reporter 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 memory corruption issue was addressed with improved error handling. CVE-2018-4206: Ian Beer of Google Project Zero LinkPresentation Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted text message may lead to UI spoofing Description: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. CVE-2018-4187: Zhiyang Zeng (@Wester) of Tencent Security Platform Department, Roman Mueller (@faker_) 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 state management. CVE-2018-4200: Ivan Fratric of Google Project Zero 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: Richard Zhu (fluorescence) working with Trend Micro's Zero Day Initiative, found by OSS-Fuzz 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 11.3.1". 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----- iQJdBAEBCgBHFiEEcuX4rtoRe4X62yWlg6PvjDRstEYFAlrezFopHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQg6PvjDRstEbT9hAA lMTLFEuvE2lqR7tAQRseXovX6/MQYE75h64lYFPMBEtnmk9XJPH781dEwsW3ejlH 4U2KiCrsT5SeosP0zIonat28EcuK0mqQG5lCZx1oy7SEuA8DytDh4HaiXRSybjzU 6IY3gj5BjvYAALLjFzjRdK2NWs/aXNJ3E3uDkIT/0PB5NjNc6Xp4WrGz9WT2ypa4 L6e38nnN8IPbigWo/OhPFEW3lUz1vXs0o32waHWX3E5vf+oRh2LTTRvYIpIuNv3D QQtWj+0V3taIff4CL0hfljVXQUiDRAD/3jIkDkmC1TLQBSdYxVDlxd9zzWZq92lC WWszCQFlecWDyj/Biw1NGUNIw3MFZUq+GuAj4rPr8xbJ+aSfM4wIgoAASEkQcA03 wcorne20JVLCqfMiBsDsk1i6AjfwsFKZ/W6i8UCLIQ5Quthrrr3/CXpDwRXkmVxh /tWvcmc2SVrnHrkPESCyHTgK4rn1m93zp5ll37sH3tqvjD+M2MGUXKrBmH1zCxSf RbWMcWawii4TZIcFhbnl1rtM0iU731N+ppZqdNmuHLwfx1OEmA9f9SBRqnRp90Nl csVGylQFQB6cWnPmn39G/PcT6w4HUaHDw8LcPt8owUHIJCNkxgE2swuTZKTwxOdv CXVOyP5XXgLq8ZJSj5otnOq2xx7Xy6vENdQiZCslM5Q= =/m5p - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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