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APPLE-SA-2021-09-20-4 Xcode 13

Xcode 13 addresses the following issues. Information about the
security content is also available at
https://support.apple.com/HT212818.

IDE Xcode Server
Available for: macOS Big Sur 11.3 and later
Impact: Multiple issues in nginx
Description: Multiple issues were addressed by updating nginx to
version 1.21.0.
CVE-2016-0742
CVE-2016-0746
CVE-2016-0747
CVE-2017-7529
CVE-2018-16843
CVE-2018-16844
CVE-2018-16845
CVE-2019-20372

Installation note:

Xcode 13 may be obtained from:

https://developer.apple.com/xcode/downloads/

To check that the Xcode has been updated:

* Select Xcode in the menu bar
* Select About Xcode
* The version after applying this update will be "Xcode 13".

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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