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About the security content of iOS 11.4.1 - Apple Support

Description

## 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](<https://support.apple.com/kb/HT201222>) page. For more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page. You can encrypt communications with Apple using the [Apple Product Security PGP Key](<https://support.apple.com/kb/HT201601>). Apple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible. ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## iOS 11.4.1 Released July 9, 2018 **CFNetwork** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Cookies may unexpectedly persist in Safari Description: A cookie management issue was addressed with improved checks. CVE-2018-4293: an anonymous researcher **Core Bluetooth** 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 system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4327: Apple Entry added August 8, 2018 **Emoji** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing an emoji under certain configurations may lead to a denial of service Description: A denial of service issue was addressed with improved memory handling. CVE-2018-4290: Patrick Wardle of Digita Security **Kernel** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to read kernel memory Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. CVE-2018-4282: Adam Donenfeld (@doadam) of the Zimperium zLabs Team, Proteas of Qihoo 360 Nirvan Team, Valentin "slashd" Shilnenkov Entry updated November 16, 2018 **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 memory corruption issue was addressed with improved memory handling. CVE-2018-4280: Brandon Azad **libxpc** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2018-4248: Brandon Azad **LinkPresentation** 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: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. CVE-2018-4277: xisigr of Tencent's Xuanwu Lab (tencent.com) **Phone** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to bypass the call confirmation prompt Description: A logic issue existed in the handling of call URLs. This issue was addressed with improved state management. CVE-2018-4216: Abraham Masri (@cheesecakeufo) Entry added October 18, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may exfiltrate audio data cross-origin Description: Sound fetched through audio elements may be exfiltrated cross-origin. This issue was addressed with improved audio taint tracking. CVE-2018-4278: Jun Kokatsu (@shhnjk) **WebKit** 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 race condition was addressed with additional validation. CVE-2018-4266: found by OSS-Fuzz **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: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation. CVE-2018-4274: an anonymous researcher **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 memory handling. CVE-2018-4270: 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 type confusion issue was addressed with improved memory handling. CVE-2018-4284: found by OSS-Fuzz Entry updated October 18, 2018 **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-2018-4261: Omair working with Trend Micro's Zero Day Initiative CVE-2018-4262: Mateusz Krzywicki working with Trend Micro's Zero Day Initiative CVE-2018-4263: Arayz working with Trend Micro's Zero Day Initiative CVE-2018-4264: found by OSS-Fuzz, Yu Zhou and Jundong Xie of Ant-financial Light-Year Security Lab CVE-2018-4265: cc working with Trend Micro's Zero Day Initiative CVE-2018-4267: Arayz of Pangu team working with Trend Micro's Zero Day Initiative CVE-2018-4272: 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 an unexpected Safari crash Description: Multiple memory corruption issues were addressed with improved input validation. CVE-2018-4271: found by OSS-Fuzz CVE-2018-4273: found by OSS-Fuzz **WebKit Page Loading** 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-2018-4260: xisigr of Tencent's Xuanwu Lab (tencent.com) **Wi-Fi** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4275: Brandon Azad ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## Additional recognition **Kernel** We would like to acknowledge juwei lin (@panicaII) of Trend Micro working with Trend Micro’s Zero Day Initiative for their assistance.


Affected Software


CPE Name Name Version
ios 11.4.1

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