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Category:   OS (Other)  >   Apple iOS Vendors:   Apple
(Apple Issues Fix for Apple iOS) Apple macOS/OS X Character Processing Flaw in CoreText Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1040397
SecurityTracker URL:  http://securitytracker.com/id/1040397
CVE Reference:   CVE-2018-4124   (Links to External Site)
Date:  Feb 20 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in Apple macOS/OS X. A remote user can cause the target service to crash. Apple iOS is affected.

A remote user can send a specially crafted Telugu character in a message to trigger a memory corruption error in the CoreText component and cause the target application to crash.

An anonymous researcher reported this vulnerability.

Impact:   A remote user can cause the target service or application to crash.
Solution:   The Apple has issued a fix for Apple iOS (11.2.6).

The Apple advisory is available at:

https://support.apple.com/en-us/HT208534

Vendor URL:  support.apple.com/en-us/HT208534 (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   This archive entry is a follow-up to the message listed below.
Feb 20 2018 Apple macOS/OS X Character Processing Flaw in CoreText Lets Remote Users Cause the Target Service to Crash



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