Vulnerability Name:

CVE-2020-27932 (CCN-191276)

Assigned:2020-11-05
Published:2020-11-05
Updated:2021-02-11
Summary:A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. A malicious application may be able to execute arbitrary code with kernel privileges.
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-843
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2020-27932

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1

Source: XF
Type: UNKNOWN
apple-ios-cve202027932-priv-esc(191276)

Source: CCN
Type: Packet Storm Security [02-05-2021]
XNU Kernel Turnstiles Type Confusion

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211928

Source: CCN
Type: Apple security document HT211929
About the security content of iOS 14.2 and iPadOS 14.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211929

Source: CCN
Type: Apple security document HT211931
About the security content of macOS Big Sur 11.0.1

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211931

Source: CCN
Type: Apple security document HT211940
About the security content of iOS 12.4.9

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211940

Source: CCN
Type: Apple security document HT211944
About the security content of watchOS 6.2.9

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211944

Source: CCN
Type: Apple security document HT211945
About the security content of watchOS 5.3.9

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211945

Source: CCN
Type: Apple security document HT211946
About the security content of Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211946

Source: CCN
Type: Apple security document HT211947
About the security content of macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211947

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apple:icloud:*:*:*:*:*:windows:*:* (Version < 11.5)
  • OR cpe:/a:apple:itunes:*:*:*:*:*:windows:*:* (Version < 12.11)
  • OR cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.2)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.4.9)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version >= 14.0 and < 14.2)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.15.7)
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.0.1)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.3.9)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version >= 6.0 and < 6.2.9)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version >= 7.0 and < 7.1)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_high_sierra:10.13.6:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_mojave:10.14.6:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:6.2.8:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:5.3.7:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:12.4.8:*:*:*:*:*:*:*
  • AND
  • cpe:/o:apple:macos_catalina:10.15.6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple icloud *
    apple itunes *
    apple ipados *
    apple iphone os *
    apple iphone os *
    apple mac os x *
    apple macos *
    apple watchos *
    apple watchos *
    apple watchos *
    apple macos high sierra 10.13.6
    apple macos mojave 10.14.6
    apple watchos 6.2.8
    apple ios 14.1
    apple ipados 14.1
    apple watchos 5.3.7
    apple ios 12.4.8
    apple macos catalina 10.15.6