CVE-2018-4124

An issue was discovered in certain Apple products. iOS before 11.2.6 is affected. macOS before 10.13.3 Supplemental Update is affected. tvOS before 11.2.6 is affected. watchOS before 4.2.3 is affected. The issue involves the "CoreText" component. It allows remote attackers to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a crafted string containing a certain Telugu character.

• CWE-119

• http://www.securitytracker.com/id/1040396Third Party Advisory, VDB Entry
• https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/Third Party Advisory
• https://support.apple.com/HT208534Vendor Advisory
• https://support.apple.com/HT208535Vendor Advisory
• https://support.apple.com/HT208536Vendor Advisory
• https://support.apple.com/HT208537Vendor Advisory
• http://www.securitytracker.com/id/1040396Third Party Advisory, VDB Entry
• https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/Third Party Advisory
• https://support.apple.com/HT208534Vendor Advisory
• https://support.apple.com/HT208535Vendor Advisory
• https://support.apple.com/HT208536Vendor Advisory
• https://support.apple.com/HT208537Vendor Advisory

Published

Apr 3, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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