Vulnerability Details : 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.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2018-4124
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-4124
1.87%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-4124
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:C |
10.0
|
8.5
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-4124
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-4124
-
https://support.apple.com/HT208537
About the security content of watchOS 4.2.3 - Apple SupportVendor Advisory
-
https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/
Apple fixes that “1 character to crash your Mac and iPhone” bug – Naked SecurityThird Party Advisory
-
https://support.apple.com/HT208534
About the security content of iOS 11.2.6 - Apple SupportVendor Advisory
-
http://www.securitytracker.com/id/1040396
Apple macOS/OS X Character Processing Flaw in CoreText Lets Remote Users Cause the Target Service to Crash - SecurityTrackerThird Party Advisory;VDB Entry
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https://support.apple.com/HT208536
About the security content of tvOS 11.2.6 - Apple SupportVendor Advisory
-
https://support.apple.com/HT208535
About the security content of macOS High Sierra 10.13.3 Supplemental Update - Apple SupportVendor Advisory
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