Vulnerability Name:

CVE-2020-9918 (CCN-185435)

Assigned:2020-07-15
Published:2020-07-15
Updated:2022-05-31
Summary:An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-9918

Source: XF
Type: UNKNOWN
apple-macos-cve20209918-dos(185435)

Source: CCN
Type: Apple security document HT211288
About the security content of iOS 13.6 and iPadOS 13.6

Source: CCN
Type: Apple security document HT211289
About the security content of macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra

Source: CCN
Type: Apple security document HT211290
About the security content of tvOS 13.4.8

Source: CCN
Type: Apple security document HT211291
About the security content of watchOS 6.2.8

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211288

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211289

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211290

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211291

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.15.6)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 13.4.8)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 6.2.8)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_catalina:10.15.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:6.2.7:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple mac os x *
    apple tvos *
    apple watchos *
    apple macos catalina 10.15.5
    apple watchos 6.2.7