CVE-2020-27927

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted font file may lead to arbitrary code execution.

Summary:

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted font file may lead to arbitrary code execution.

Reference Links(if available):

  • https://support.apple.com/en-us/HT211929
  • https://support.apple.com/en-us/HT211928
  • https://support.apple.com/en-us/HT211931
  • https://support.apple.com/en-us/HT211930
  • http://seclists.org/fulldisclosure/2020/Dec/32
  • CVSS Score (if available)

    v2: / HIGHAV:N/AC:M/Au:N/C:P/I:P/A:P

    v3: / HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

    Links to Exploits(if available)