Vulnerability CVE-2018-4427

Vulnerability Name:

CVE-2018-4427 (CCN-152471)

Assigned:

2018-10-31

Published:

2018-10-31

Updated:

2019-04-05

Summary:

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to: iOS 12.1, watchOS 5.1.2, tvOS 12.1.1, macOS High Sierra 10.13.6 Security Update 2018-003 High Sierra, macOS Sierra 10.12.6 Security Update 2018-006.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2018-4427

Source: XF
Type: UNKNOWN
appleios-cve20184427-priv-esc(152471)

Source: CCN
Type: Apple security document HT209192
About the security content of iOS 12.1

Source: CCN
Type: Apple security document HT209341
About the security content of macOS Mojave 10.14.2, Security Update 2018-003 High Sierra, Security Update 2018-006 Sierra

Source: CCN
Type: Apple security document HT209342
About the security content of tvOS 12.1.1

Source: CCN
Type: Apple security document HT209343
About the security content of watchOS 5.1.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209192

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209341

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209342

Source: MISC
Type: Vendor Advisory
https://support.apple.com/kb/HT209343

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.1)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.14.2)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 12.1.1)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.1.2)

Denotes that component is vulnerable

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