Vulnerability Name:

CVE-2020-3842 (CCN-175190)

Assigned:2019-12-18
Published:2020-01-28
Updated:2021-07-21
Summary:A memory corruption 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. An 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)
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-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-3842

Source: XF
Type: UNKNOWN
apple-tvos-cve20203842-priv-esc(175190)

Source: CCN
Type: Packet Storm Security [02-20-2020]
XNU ip6_notify_pmtu Remote mbuf Double-Free

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