Vulnerability Name:

CVE-2020-3843 (CCN-175353)

Assigned:2019-12-18
Published:2020-01-28
Updated:2022-05-31
Summary:A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.9 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-3843

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/162119/iOS-macOS-Radio-Proximity-Kernel-Memory-Corruption.html

Source: XF
Type: UNKNOWN
apple-macos-cve20203843-code-exec(175353)

Source: CCN
Type: Packet Storm Security [03-09-2020]
iOS / macOS AWDL Heap Corruption / Bounds Checking

Source: CCN
Type: Packet Storm Security [06-25-2020]
iOS / macOS Wifi Proximity Kernel Double-Free

Source: CCN
Type: Packet Storm Security [04-07-2021]
iOS / macOS Radio Proximity Kernel Memory Corruption

Source: CCN
Type: Apple security document HT210919
About the security content of macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

Source: CCN
Type: Apple security document HT211169
About the security content of iOS 12.4.7

Source: CCN
Type: Apple security document HT211176
About the security content of watchOS 5.3.7

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT211169

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT211176

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.3.7)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.4.7)

    • Configuration CCN 1:
  • cpe:/o:apple:watchos:5.3:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:12.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_catalina:10.15.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple watchos *
    apple iphone os *
    apple watchos 5.3.0
    apple ios 12.4
    apple macos catalina 10.15.2