-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.2580
MFSA 2020-33 Security Vulnerabilities fixed in Thunderbird 78.1
29 July 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Thunderbird
Publisher: Mozilla
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-15659 CVE-2020-15658 CVE-2020-15657
CVE-2020-15656 CVE-2020-15655 CVE-2020-15654
CVE-2020-15653 CVE-2020-15652 CVE-2020-6514
CVE-2020-6463
Reference: ESB-2020.2578
ESB-2020.2569
ESB-2020.2410
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2020-33/
- --------------------------BEGIN INCLUDED TEXT--------------------
Mozilla Foundation Security Advisory 2020-33
Security Vulnerabilities fixed in Thunderbird 78.1
Announced
July 28, 2020
Impact
high
Products
Thunderbird
Fixed in
Thunderbird 78.1
In general, these flaws cannot be exploited through email in the Thunderbird
product because scripting is disabled when reading mail, but are potentially
risks in browser or browser-like contexts.
# CVE-2020-15652: Potential leak of redirect targets when loading scripts in a
worker
Reporter
Mikhail Oblozhikhin
Impact
high
Description
By observing the stack trace for JavaScript errors in web workers, it was
possible to leak the result of a cross-origin redirect. This applied only to
content that can be parsed as script.
References
o Bug 1634872
# CVE-2020-6514: WebRTC data channel leaks internal address to peer
Reporter
Natalie Silvanovich of Google Project Zero
Impact
high
Description
WebRTC used the memory address of a class instance as a connection identifier.
Unfortunately, this value is often transmitted to the peer, which allows
bypassing ASLR.
References
o Bug 1642792
# CVE-2020-15655: Extension APIs could be used to bypass Same-Origin Policy
Reporter
Rob Wu
Impact
high
Description
Mozilla Developer Rob Wu discovered that a redirected HTTP request which is
observed or modified through a web extension could bypass existing CORS checks,
leading to potential disclosure of cross-origin information.
References
o Bug 1645204
# CVE-2020-15653: Bypassing iframe sandbox when allowing popups
Reporter
Anne van Kesteren
Impact
moderate
Description
Mozilla developer Anne van Kesteren discovered that with the
allow-popups flag could be bypassed when using noopener links. This could have
led to security issues for websites relying on sandbox configurations that
allowed popups and hosted arbitrary content.
References
o Bug 1521542
# CVE-2020-6463: Use-after-free in ANGLE gl::Texture::onUnbindAsSamplerTexture
Reporter
Reported by Pawel Wylecial of REDTEAM.PL
Impact
moderate
Description
Crafted media files could lead to a race in texture caches, resulting in a
use-after-free, memory corruption, and a potentially exploitable crash.
References
o Bug 1635293
# CVE-2020-15656: Type confusion for special arguments in IonMonkey
Reporter
Carl Smith, working with Google Project Zero
Impact
moderate
Description
JIT optimizations involving the Javascript arguments object could confuse later
optimizations. This risk was already mitigated by various precautions in the
code, resulting in this bug rated at only moderate severity.
References
o Bug 1647293
# CVE-2020-15658: Overriding file type when saving to disk
Reporter
belden
Impact
low
Description
The code for downloading files did not properly take care of special
characters, which led to an attacker being able to cut off the file ending at
an earlier position, leading to a different file type being downloaded than
shown in the dialog.
References
o Bug 1637745
# CVE-2020-15657: DLL hijacking due to incorrect loading path
Reporter
Steve Nyan Lin
Impact
low
Description
Firefox could be made to load attacker-supplied DLL files from the installation
directory. This required an attacker that is already capable of placing files
in the installation directory.
Note: This issue only affected Windows operating systems. Other operating
systems are unaffected.
References
o Bug 1644954
# CVE-2020-15654: Custom cursor can overlay user interface
Reporter
SophosLabs Offensive Security team
Impact
low
Description
When in an endless loop, a website specifying a custom cursor using CSS could
make it look like the user is interacting with the user interface, when they
are not. This could lead to a perceived broken state, especially when
interactions with existing browser dialogs and warnings do not work.
References
o Bug 1648333
# CVE-2020-15659: Memory safety bugs fixed in Thunderbird 78.1
Reporter
Mozilla developers and community
Impact
high
Description
Mozilla developers and community members Natalia Csoregi, Simon Giesecke, Jason
Kratzer, Christian Holler, and Luke Wagner reported memory safety bugs present
in Firefox 78 and Firefox ESR 78.0. Some of these bugs showed evidence of
memory corruption and we presume that with enough effort some of these could
have been exploited to run arbitrary code.
References
o Memory safety bugs fixed in Thunderbird 78.1
- --------------------------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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=cMM9
-----END PGP SIGNATURE-----
https://www.malwaredevil.com/2020/07/29/esb-2020-2580-winunix-linux-thunderbird-multiple-vulnerabilities/?utm_source=rss&utm_medium=rss&utm_campaign=esb-2020-2580-winunix-linux-thunderbird-multiple-vulnerabilities
No comments:
Post a Comment