Vulnerability Name:

CVE-2018-4247 (CCN-144276)

Assigned:2018-06-01
Published:2018-06-01
Updated:2018-07-17
Summary:An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the "Safari" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-4247

Source: BID
Type: Third Party Advisory, VDB Entry
104366

Source: CCN
Type: BID-104366
Apple iOS and Safari CVE-2018-4247 Remote Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041029

Source: XF
Type: UNKNOWN
apple-safari-cve20184247-dos(144276)

Source: CCN
Type: Apple security document HT208848
About the security content of iOS 11.4

Source: CCN
Type: Apple security document HT208854
About the security content of Safari 11.1.1

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208848

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT208854

Source: MISC
Type: Third Party Advisory
https://twitter.com/Nate_Kappa/status/1004399403220766725

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apple:safari:*:*:*:*:*:*:*:* (Version < 11.1.1)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 11.4)

    • Configuration CCN 1:
  • cpe:/o:apple:ios:11.3:*:*:*:*:*:*:*
  • OR cpe:/a:apple:safari:11.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple safari *
    apple iphone os *
    apple iphone os 11.3
    apple safari 11.1