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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
(Red Hat Issues Fix) Mozilla Firefox Integer Overflow in createImageBitmap() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038061
SecurityTracker URL:  http://securitytracker.com/id/1038061
CVE Reference:   CVE-2017-5428   (Links to External Site)
Date:  Mar 17 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 52.0; possibly prior versions
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted content that, when loaded by the target user, will trigger an integer overflow in the createImageBitmap() function and execute arbitrary code on the target user's system. The code will run in the content sandbox. As a result, a separate vulnerability must be exploited in conjunction with this vulnerability to gain privileges on the target user's system.

Chaitin Security Research Lab (via Trend Micro's Zero Day Initiative at Pwn2Own) reported this vulnerability.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2017-0558.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2017-0558.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Mar 17 2017 Mozilla Firefox Integer Overflow in createImageBitmap() Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Date:  Fri, 17 Mar 2017 18:22:37 -0400
Subject:  [RHSA-2017:0558-01] Critical: firefox security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: firefox security update
Advisory ID:       RHSA-2017:0558-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2017-0558.html
Issue date:        2017-03-17
CVE Names:         CVE-2017-5428 
=====================================================================

1. Summary:

An update for firefox is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

Mozilla Firefox is an open source web browser.

Security Fix(es):

* A flaw was found in the processing of malformed web content. A web page
containing malicious content could cause Firefox to crash or, potentially,
execute arbitrary code with the privileges of the user running Firefox.
(CVE-2017-5428)

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Chaitin Security Research Lab via Trend Micro's Zero
Day Initiative as the original reporters.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to
take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1433202 - CVE-2017-5428 Mozilla: integer overflow in createImageBitmap() (MFSA 2017-08)

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
firefox-52.0-5.el7_3.src.rpm

x86_64:
firefox-52.0-5.el7_3.x86_64.rpm
firefox-debuginfo-52.0-5.el7_3.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
firefox-52.0-5.el7_3.i686.rpm
firefox-debuginfo-52.0-5.el7_3.i686.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
firefox-52.0-5.el7_3.src.rpm

aarch64:
firefox-52.0-5.el7_3.aarch64.rpm
firefox-debuginfo-52.0-5.el7_3.aarch64.rpm

ppc64:
firefox-52.0-5.el7_3.ppc64.rpm
firefox-debuginfo-52.0-5.el7_3.ppc64.rpm

ppc64le:
firefox-52.0-5.el7_3.ppc64le.rpm
firefox-debuginfo-52.0-5.el7_3.ppc64le.rpm

s390x:
firefox-52.0-5.el7_3.s390x.rpm
firefox-debuginfo-52.0-5.el7_3.s390x.rpm

x86_64:
firefox-52.0-5.el7_3.x86_64.rpm
firefox-debuginfo-52.0-5.el7_3.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
firefox-52.0-5.el7_3.ppc.rpm
firefox-debuginfo-52.0-5.el7_3.ppc.rpm

s390x:
firefox-52.0-5.el7_3.s390.rpm
firefox-debuginfo-52.0-5.el7_3.s390.rpm

x86_64:
firefox-52.0-5.el7_3.i686.rpm
firefox-debuginfo-52.0-5.el7_3.i686.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
firefox-52.0-5.el7_3.src.rpm

x86_64:
firefox-52.0-5.el7_3.x86_64.rpm
firefox-debuginfo-52.0-5.el7_3.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
firefox-52.0-5.el7_3.i686.rpm
firefox-debuginfo-52.0-5.el7_3.i686.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-5428
https://access.redhat.com/security/updates/classification/#critical
https://www.mozilla.org/en-US/security/advisories/mfsa2017-08

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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