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

Synopsis:          Important: firefox security update
Advisory ID:       RHSA-2017:3382-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:3382
Issue date:        2017-12-04
CVE Names:         CVE-2017-7843 
====================================================================
1. Summary:

An update for firefox is now available for Red Hat Enterprise Linux 6 and
Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le

3. Description:

Mozilla Firefox is an open source web browser.

This update upgrades Firefox to version 52.5.1 ESR.

Security Fix(es):

* A privacy flaw was discovered in Firefox. In Private Browsing mode, a web
worker could write persistent data to IndexedDB, which was not cleared when
exiting and would persist across multiple sessions. A malicious website
could exploit the flaw to bypass private-browsing protections and uniquely
fingerprint visitors. (CVE-2017-7843)

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Konark as the original reporter.

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/):

1518566 - CVE-2017-7843 Mozilla: Web worker in Private Browsing mode can write IndexedDB data

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
firefox-52.5.1-1.el6_9.src.rpm

i386:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

x86_64:
firefox-52.5.1-1.el6_9.x86_64.rpm
firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

x86_64:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
firefox-52.5.1-1.el6_9.src.rpm

x86_64:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-52.5.1-1.el6_9.x86_64.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
firefox-52.5.1-1.el6_9.src.rpm

i386:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

ppc64:
firefox-52.5.1-1.el6_9.ppc64.rpm
firefox-debuginfo-52.5.1-1.el6_9.ppc64.rpm

s390x:
firefox-52.5.1-1.el6_9.s390x.rpm
firefox-debuginfo-52.5.1-1.el6_9.s390x.rpm

x86_64:
firefox-52.5.1-1.el6_9.x86_64.rpm
firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

ppc64:
firefox-52.5.1-1.el6_9.ppc.rpm
firefox-debuginfo-52.5.1-1.el6_9.ppc.rpm

s390x:
firefox-52.5.1-1.el6_9.s390.rpm
firefox-debuginfo-52.5.1-1.el6_9.s390.rpm

x86_64:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
firefox-52.5.1-1.el6_9.src.rpm

i386:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

x86_64:
firefox-52.5.1-1.el6_9.x86_64.rpm
firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

x86_64:
firefox-52.5.1-1.el6_9.i686.rpm
firefox-debuginfo-52.5.1-1.el6_9.i686.rpm

Red Hat Enterprise Linux Client (v. 7):

Source:
firefox-52.5.1-1.el7_4.src.rpm

x86_64:
firefox-52.5.1-1.el7_4.x86_64.rpm
firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm

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

x86_64:
firefox-52.5.1-1.el7_4.i686.rpm
firefox-debuginfo-52.5.1-1.el7_4.i686.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
firefox-52.5.1-1.el7_4.src.rpm

ppc64:
firefox-52.5.1-1.el7_4.ppc64.rpm
firefox-debuginfo-52.5.1-1.el7_4.ppc64.rpm

ppc64le:
firefox-52.5.1-1.el7_4.ppc64le.rpm
firefox-debuginfo-52.5.1-1.el7_4.ppc64le.rpm

s390x:
firefox-52.5.1-1.el7_4.s390x.rpm
firefox-debuginfo-52.5.1-1.el7_4.s390x.rpm

x86_64:
firefox-52.5.1-1.el7_4.x86_64.rpm
firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
firefox-52.5.1-1.el7_4.src.rpm

aarch64:
firefox-52.5.1-1.el7_4.aarch64.rpm
firefox-debuginfo-52.5.1-1.el7_4.aarch64.rpm

ppc64le:
firefox-52.5.1-1.el7_4.ppc64le.rpm
firefox-debuginfo-52.5.1-1.el7_4.ppc64le.rpm

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

ppc64:
firefox-52.5.1-1.el7_4.ppc.rpm
firefox-debuginfo-52.5.1-1.el7_4.ppc.rpm

s390x:
firefox-52.5.1-1.el7_4.s390.rpm
firefox-debuginfo-52.5.1-1.el7_4.s390.rpm

x86_64:
firefox-52.5.1-1.el7_4.i686.rpm
firefox-debuginfo-52.5.1-1.el7_4.i686.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
firefox-52.5.1-1.el7_4.src.rpm

x86_64:
firefox-52.5.1-1.el7_4.x86_64.rpm
firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm

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

x86_64:
firefox-52.5.1-1.el7_4.i686.rpm
firefox-debuginfo-52.5.1-1.el7_4.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-2017-7843
https://access.redhat.com/security/updates/classification/#important
https://www.mozilla.org/en-US/security/advisories/mfsa2017-27/#CVE-2017-7843

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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RedHat: RHSA-2017-3382:01 Important: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7

Summary

Mozilla Firefox is an open source web browser.
This update upgrades Firefox to version 52.5.1 ESR.
Security Fix(es):
* A privacy flaw was discovered in Firefox. In Private Browsing mode, a web worker could write persistent data to IndexedDB, which was not cleared when exiting and would persist across multiple sessions. A malicious website could exploit the flaw to bypass private-browsing protections and uniquely fingerprint visitors. (CVE-2017-7843)
Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Konark as the original reporter.

Summary

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.

References

https://access.redhat.com/security/cve/CVE-2017-7843 https://access.redhat.com/security/updates/classification/#important https://www.mozilla.org/en-US/security/advisories/mfsa2017-27/#CVE-2017-7843

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-52.5.1-1.el6_9.src.rpm
i386: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
x86_64: firefox-52.5.1-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source: firefox-52.5.1-1.el6_9.src.rpm
x86_64: firefox-52.5.1-1.el6_9.i686.rpm firefox-52.5.1-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: firefox-52.5.1-1.el6_9.src.rpm
i386: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
ppc64: firefox-52.5.1-1.el6_9.ppc64.rpm firefox-debuginfo-52.5.1-1.el6_9.ppc64.rpm
s390x: firefox-52.5.1-1.el6_9.s390x.rpm firefox-debuginfo-52.5.1-1.el6_9.s390x.rpm
x86_64: firefox-52.5.1-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
ppc64: firefox-52.5.1-1.el6_9.ppc.rpm firefox-debuginfo-52.5.1-1.el6_9.ppc.rpm
s390x: firefox-52.5.1-1.el6_9.s390.rpm firefox-debuginfo-52.5.1-1.el6_9.s390.rpm
x86_64: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: firefox-52.5.1-1.el6_9.src.rpm
i386: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
x86_64: firefox-52.5.1-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.1-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
x86_64: firefox-52.5.1-1.el6_9.i686.rpm firefox-debuginfo-52.5.1-1.el6_9.i686.rpm
Red Hat Enterprise Linux Client (v. 7):
Source: firefox-52.5.1-1.el7_4.src.rpm
x86_64: firefox-52.5.1-1.el7_4.x86_64.rpm firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-52.5.1-1.el7_4.i686.rpm firefox-debuginfo-52.5.1-1.el7_4.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-52.5.1-1.el7_4.src.rpm
ppc64: firefox-52.5.1-1.el7_4.ppc64.rpm firefox-debuginfo-52.5.1-1.el7_4.ppc64.rpm
ppc64le: firefox-52.5.1-1.el7_4.ppc64le.rpm firefox-debuginfo-52.5.1-1.el7_4.ppc64le.rpm
s390x: firefox-52.5.1-1.el7_4.s390x.rpm firefox-debuginfo-52.5.1-1.el7_4.s390x.rpm
x86_64: firefox-52.5.1-1.el7_4.x86_64.rpm firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: firefox-52.5.1-1.el7_4.src.rpm
aarch64: firefox-52.5.1-1.el7_4.aarch64.rpm firefox-debuginfo-52.5.1-1.el7_4.aarch64.rpm
ppc64le: firefox-52.5.1-1.el7_4.ppc64le.rpm firefox-debuginfo-52.5.1-1.el7_4.ppc64le.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: firefox-52.5.1-1.el7_4.ppc.rpm firefox-debuginfo-52.5.1-1.el7_4.ppc.rpm
s390x: firefox-52.5.1-1.el7_4.s390.rpm firefox-debuginfo-52.5.1-1.el7_4.s390.rpm
x86_64: firefox-52.5.1-1.el7_4.i686.rpm firefox-debuginfo-52.5.1-1.el7_4.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-52.5.1-1.el7_4.src.rpm
x86_64: firefox-52.5.1-1.el7_4.x86_64.rpm firefox-debuginfo-52.5.1-1.el7_4.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-52.5.1-1.el7_4.i686.rpm firefox-debuginfo-52.5.1-1.el7_4.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/

Severity

Advisory ID: RHSA-2017:3382-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2017:3382

Issued Date: : 2017-12-04

CVE Names: CVE-2017-7843

Topic

An update for firefox is now available for Red Hat Enterprise Linux 6 andRed Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.