Vulnerability Name:

CVE-2020-3853 (CCN-175189)

Assigned:2019-12-18
Published:2020-01-28
Updated:2020-03-03
Summary:A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. A malicious application may be able to execute arbitrary code with system 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)
7.0 High (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:P/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)
7.0 High (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:P/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 Access
References:Source: MITRE
Type: CNA
CVE-2020-3853

Source: XF
Type: UNKNOWN
apple-tvos-cve20203853-priv-esc(175189)

Source: CCN
Type: Packet Storm Security [02-07-2020]
macOS/iOS XNU mk_timer_create_trap() Race Condition

Source: CCN
Type: Apple security document HT210920
About the security content of tvOS 13.3.1

Source: CCN
Type: Apple security document HT210921
About the security content of watchOS 6.1.2

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT210918

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT210919

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT210920

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT210921

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 13.3.1)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 13.3.1)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.15.3)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 13.3.1)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 6.1.2)

    • Configuration CCN 1:
  • cpe:/o:apple:tvos:13.3:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:6.1.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple mac os x *
    apple tvos *
    apple watchos *
    apple tvos 13.3
    apple watchos 6.1.1