Vulnerability Name:

CVE-2019-8756 (CCN-190596)

Assigned:2019-10-08
Published:2019-10-08
Updated:2021-07-21
Summary:Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Catalina 10.15, iOS 13, iCloud for Windows 7.14, iCloud for Windows 10.7, tvOS 13, macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, watchOS 6, iTunes 12.10.1 for Windows. Multiple issues in libxml2.
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
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)
7.7 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:U/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:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2019-8756

Source: XF
Type: UNKNOWN
apple-tvos-cve20198756-code-exec(190596)

Source: CCN
Type: Apple security document HT210604
About the security content of tvOS 13

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210604

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210606

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210607

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210634

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210635

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210636

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210637

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT210722

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apple:icloud:*:*:*:*:*:windows:*:* (Version < 7.14)
  • OR cpe:/a:apple:icloud:*:*:*:*:*:windows:*:* (Version >= 10.0 and < 10.7)
  • OR cpe:/a:apple:itunes:*:*:*:*:*:windows:*:* (Version < 12.10.1)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.15)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 13)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 6.0)

    • Configuration CCN 1:
  • cpe:/o:apple:watchos:5.3:*:*:*:*:*:*:*
  • OR cpe:/o:apple:tvos:12.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:12.4:*:*:*:*:*:*:*
  • OR cpe:/a:apple:icloud:10.6:*:*:*:*:windows:*:*
  • OR cpe:/a:apple:icloud:7.13:*:*:*:*:windows:*:*
  • OR cpe:/a:apple:itunes:12.10:*:*:*:*:windows:*:*
  • OR cpe:/o:apple:macos_mojave:10.14:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_catalina:10.15.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple icloud *
    apple icloud *
    apple itunes *
    apple mac os x *
    apple tvos *
    apple watchos *
    apple watchos 5.3.0
    apple tvos 12.4
    apple ios 12.4
    apple icloud 10.6
    apple icloud 7.13
    apple itunes 12.10
    apple macos catalina 10.14
    apple macos catalina 10.15.1