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Apple Security Advisory 2021-09-20-5

Apple Security Advisory 2021-09-20-5
Posted Sep 22, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-09-20-5 - Safari 15 addresses code execution vulnerabilities.

tags | advisory, vulnerability, code execution
systems | apple
advisories | CVE-2021-30846, CVE-2021-30848, CVE-2021-30849, CVE-2021-30851
SHA-256 | 8d88ba7ec5a645c4077e2665c419ac11e3b551ad317cefddb6b9e17450344a3e

Apple Security Advisory 2021-09-20-5

Change Mirror Download
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APPLE-SA-2021-09-20-5 Safari 15

Safari 15 addresses the following issues. Information about the
security content is also available at
https://support.apple.com/HT212816.

WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2021-30846: Sergei Glazunov of Google Project Zero

WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to code
execution
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2021-30848: Sergei Glazunov of Google Project Zero

WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2021-30849: Sergei Glazunov of Google Project Zero

WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to code
execution
Description: A memory corruption vulnerability was addressed with
improved locking.
CVE-2021-30851: Samuel GroƟ of Google Project Zero

Installation note:

This update may be obtained from the Mac App Store.

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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