WebKitGTK+: Multiple vulnerabilities

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2403
                  USN-4422-1: WebKitGTK+ vulnerabilities
                               15 July 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           WebKitGTK+
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-13753 CVE-2020-9850 CVE-2020-9843
                   CVE-2020-9807 CVE-2020-9806 CVE-2020-9805
                   CVE-2020-9803 CVE-2020-9802 

Reference:         ESB-2020.1867
                   ESB-2020.1861
                   ESB-2020.1860

Original Bulletin: 
   https://usn.ubuntu.com/4422-1/

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4422-1: WebKitGTK+ vulnerabilities
14 July 2020

webkit2gtk vulnerabilities
Releases

  o Ubuntu 20.04 LTS
  o Ubuntu 19.10
  o Ubuntu 18.04 LTS

Packages

  o webkit2gtk - Web content engine library for GTK+

Details

A large number of security issues were discovered in the WebKitGTK Web and
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to web
browser security, including cross-site scripting attacks, denial of service
attacks, and arbitrary code execution.

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 20.04

  o libjavascriptcoregtk-4.0-18 - 2.28.3-0ubuntu0.20.04.1
  o libwebkit2gtk-4.0-37 - 2.28.3-0ubuntu0.20.04.1

Ubuntu 19.10

  o libjavascriptcoregtk-4.0-18 - 2.28.3-0ubuntu0.19.10.1
  o libwebkit2gtk-4.0-37 - 2.28.3-0ubuntu0.19.10.1

Ubuntu 18.04

  o libjavascriptcoregtk-4.0-18 - 2.28.3-0ubuntu0.18.04.1
  o libwebkit2gtk-4.0-37 - 2.28.3-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.

References

  o CVE-2020-13753
  o CVE-2020-9802
  o CVE-2020-9803
  o CVE-2020-9805
  o CVE-2020-9806
  o CVE-2020-9807
  o CVE-2020-9843
  o CVE-2020-9850

- --------------------------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

iQIVAwUBXw6lU+NLKJtyKPYoAQjV8Q//S2STkTwlQYXqNorcewqe1/GCT2TyMTdH
RC+PU891Fgt2fPf7B5FMJzWANQ2W4s3MRoV0lDRM/bVTkfnkj3GohEfA86SOhpDU
cB1WxeFsRelGLlizLgXnIS5/a+IyX0FQ9xviOaRtO0Vnfpxo15GSmTT8OJVM9bzW
dnqEkHn17NrKrCm72lPfBAS3xsKlzI3gtCw4WN6BVmnyq4bkYNf8OaTlWeML02eY
Fla7nqPKhxdH0DnMLq28hJ6/EwlGbQfaBDwN9iqJ9XCcC5bSVy/UbQSxThipuYwD
NYQyPyduowtWoJ6+TnrjTzM+zRM0dTHuaq8J8wHLVIP9Osb6kiLfyDJMMBPYA7Bo
b34dR2OxKGVznxk/5mjDhkbi6dlRFumIcAXIXBdQF+M9WrflYHmwmPWWKeZRpmPz
HSm2VPIOcefB+rYofMc6UQHDnEv15r0DB9cmgFIfOWjAnEt3YRh1sgma2phri6hw
35xr0HfFxEm4SbL28mWuItWxKotMQ4JEYkTkGOzXo+U9j+jfNxi0BVWywLQdEgmH
eWM/ACNypWcBVT6/4m+i2F6SgMhupxg7goRU25WRUaan7of+xH1AO5PbqLNXwgpu
eOdPwLxr0e/rcGTGT1EVt0cu4Et4G+DYqI2oqmoVsYy3zWQAeG+Axw+8QeGJXkPi
DWjTGGF1tso=
=jDIi
-----END PGP SIGNATURE-----