Vulnerability Name:

CVE-2021-30791 (CCN-206149)

Assigned:2021-07-21
Published:2021-07-21
Updated:2022-02-11
Summary:An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Processing a maliciously crafted file may disclose user information.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/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): None
Availibility (A): None
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/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): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-125
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-30791

Source: XF
Type: UNKNOWN
apple-macos-cve202130791-info-disc(206149)

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212601

Source: CCN
Type: Apple security document HT212602
About the security content of macOS Big Sur 11.5

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT212602

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/kb/HT212600

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/kb/HT212603

Source: CCN
Type: ZDI-21-946
Apple macOS ModelIO ABC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.7)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.7)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.14.0 and < 10.14.6)
  • OR cpe:/o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:security_update_2021-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version >= 10.15 and < 10.15.7)
  • OR cpe:/o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version < 11.5)

    • Configuration CCN 1:
  • cpe:/o:apple:macos_big_sur:11.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple mac os x *
    apple mac os x 10.14.6 -
    apple mac os x 10.14.6 security_update_2019-001
    apple mac os x 10.14.6 security_update_2019-002
    apple mac os x 10.14.6 security_update_2019-004
    apple mac os x 10.14.6 security_update_2019-005
    apple mac os x 10.14.6 security_update_2019-006
    apple mac os x 10.14.6 security_update_2019-007
    apple mac os x 10.14.6 security_update_2020-001
    apple mac os x 10.14.6 security_update_2020-002
    apple mac os x 10.14.6 security_update_2020-003
    apple mac os x 10.14.6 security_update_2020-004
    apple mac os x 10.14.6 security_update_2020-005
    apple mac os x 10.14.6 security_update_2020-006
    apple mac os x 10.14.6 security_update_2020-007
    apple mac os x 10.14.6 security_update_2021-001
    apple mac os x 10.14.6 security_update_2021-002
    apple mac os x 10.14.6 security_update_2021-003
    apple mac os x 10.14.6 security_update_2021-004
    apple mac os x 10.14.6 supplemental_update
    apple mac os x 10.14.6 supplemental_update_2
    apple mac os x *
    apple mac os x 10.15.7 -
    apple mac os x 10.15.7 security_update_2020
    apple mac os x 10.15.7 security_update_2020-001
    apple mac os x 10.15.7 security_update_2020-005
    apple mac os x 10.15.7 security_update_2020-007
    apple mac os x 10.15.7 security_update_2021-001
    apple mac os x 10.15.7 security_update_2021-002
    apple mac os x 10.15.7 security_update_2021-003
    apple mac os x 10.15.7 supplemental_update
    apple macos *
    apple macos big sur 11.4