Vulnerability Name:

CVE-2018-4124 (CCN-139214)

Assigned:2018-02-19
Published:2018-02-19
Updated:2019-03-08
Summary: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.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:9.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-4124

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040396

Source: XF
Type: UNKNOWN
apple-cve20184124-dos(139214)

Source: MISC
Type: Third Party Advisory
https://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/

Source: CCN
Type: Apple security document HT208534
About the security content of iOS 11.2.6

Source: CCN
Type: Apple security document HT208535
About the security content of macOS High Sierra 10.13.3 Supplemental Update

Source: CCN
Type: Apple security document HT208536
About the security content of tvOS 11.2.6

Source: CCN
Type: Apple security document HT208537
About the security content of watchOS 4.2.3

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208534

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208535

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208536

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208537

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 11.2.6)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.13.3)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 11.2.6)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 4.2.3)

  • Configuration CCN 1:
  • cpe:/o:apple:ios:11.2.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:4.2.3:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apple iphone os *
    apple mac os x *
    apple tvos *
    apple watchos *
    apple iphone os 11.2.5
    apple watchos 4.2.3