CVE-2020-27927

Description

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.

References

Link	Tags
https://support.apple.com/en-us/HT211931	vendor advisory
https://support.apple.com/en-us/HT211928	vendor advisory
https://support.apple.com/en-us/HT211929	vendor advisory
https://support.apple.com/en-us/HT211930	vendor advisory
http://seclists.org/fulldisclosure/2020/Dec/32	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-27927?: CVE-2020-27927 has been scored as a high severity vulnerability.
How to fix CVE-2020-27927?: To fix CVE-2020-27927, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-27927 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-27927 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-27927?: CVE-2020-27927 affects Apple watchOS, Apple iOS and iPadOS, Apple tvOS, Apple macOS.

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Description

Category

CWE-787 – Out-of-bounds Write

References

Frequently Asked Questions