Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.0088
USN-4687-1: Firefox vulnerability
11 January 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: firefox
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-16044
Reference: ESB-2021.0081
ESB-2021.0067
Original Bulletin:
https://ubuntu.com/security/notices/USN-4687-1
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-4687-1: Firefox vulnerability
08 January 2021
Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Releases
o Ubuntu 20.10
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o firefox - Mozilla Open Source web browser
Details
A use-after-free was discovered in Firefox when handling SCTP packets.
An attacker could potentially exploit this to cause a denial of service,
or execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.10
o firefox - 84.0.2+build1-0ubuntu0.20.10.1
Ubuntu 20.04
o firefox - 84.0.2+build1-0ubuntu0.20.04.1
Ubuntu 18.04
o firefox - 84.0.2+build1-0ubuntu0.18.04.1
Ubuntu 16.04
o firefox - 84.0.2+build1-0ubuntu0.16.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References
o CVE-2020-16044
- --------------------------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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=5gRx
-----END PGP SIGNATURE-----