APPLE-SA-2021-09-13-3 macOS Big Sur 11.6

[Apple Product Security via Fulldisclosure <fulldisclosure () seclists org>]

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APPLE-SA-2021-09-13-3 macOS Big Sur 11.6

macOS Big Sur 11.6 addresses the following issues. Information about
the security content is also available at
https://support.apple.com/HT212804.

CoreGraphics
Available for: macOS Big Sur
Impact: Processing a maliciously crafted PDF may lead to arbitrary
code execution. Apple is aware of a report that this issue may have
been actively exploited.
Description: An integer overflow was addressed with improved input
validation.
CVE-2021-30860: The Citizen Lab

WebKit
Available for: macOS Big Sur
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution. Apple is aware of a report that this issue
may have been actively exploited.
Description: A use after free issue was addressed with improved
memory management.
CVE-2021-30858: an anonymous researcher


Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/

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