Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.1501
Apple security update for macOS Big Sur
4 May 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: macOS Big Sur
Publisher: Apple
Operating System: Mac OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-30665 CVE-2021-30663
Original Bulletin:
https://support.apple.com/HT212335
Comment: Apple is aware of a report that this issue may have been actively exploited.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
APPLE-SA-2021-05-03-4 macOS Big Sur 11.3.1
macOS Big Sur 11.3.1 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT212335.
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 memory corruption issue was addressed with improved
state management.
CVE-2021-30665: yangkang (@dnpushme)&zerokeeper&bianliang of 360 ATA
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: An integer overflow was addressed with improved input
validation.
CVE-2021-30663: an anonymous researcher
Installation note:
This update may be obtained from the Mac App Store or
Apple's Software Downloads web site:
https://support.apple.com/downloads/
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/
- -----BEGIN PGP SIGNATURE-----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=iupq
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=3+Ak
-----END PGP SIGNATURE-----