Vulnerability Monitor

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CVE-2021-1791

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory.

Published

2021-04-02T18:15:21.810

Last Modified

2024-11-21T05:45:07.340

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-125
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System apple ipados < 14.4 Yes
Operating System apple iphone_os < 14.4 Yes
Operating System apple mac_os_x < 10.14.6 Yes
Operating System apple mac_os_x < 10.15.7 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.14.6 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple macos < 11.2 Yes
Operating System apple tvos < 14.4 Yes
Operating System apple watchos < 7.3 Yes
References