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Red Hat Enterprise Linux 7: RHSA-2020-4080: Important Firefox Update

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Calendar Grey September 30, 2020
Scroller Redhat
Important security patch and bug resolution update for Firefox on Red Hat Enterprise Linux 7 tackles various vulnerabilities.
An update for firefox is now available for Red Hat Enterprise Linux 7

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.

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 78.3.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673)
* Mozilla: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (CVE-2020-12422)
* Mozilla: X-Frame-Options bypass using object or embed tags (CVE-2020-15648)
* Mozilla: Bypassing iframe sandbox when allowing popups (CVE-2020-15653)
* Mozilla: Type confusion for special arguments in IonMonkey (CVE-2020-15656)
* Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676)
* Mozilla: Download origin spoofing via redirect (CVE-2020-15677)
* Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678)
* Mozilla: WebRTC permission prompt could have been bypassed by a compromised content process (CVE-2020-12424)
* Mozilla: Out of bound read in Date.parse() (CVE-2020-12425)
* Mozilla: Custom cursor can overlay user interface (CVE-2020-15654)
* Mozilla: Overriding file type when saving to disk (CVE-2020-15658)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* Warnings displayed when removing Firefox package (BZ#1868842)

Topics%20covered

Topics Covered

security advisory update bug fix Red Hat Enterprise Linux important firefox web browser

References

https://access.redhat.com/security/cve/CVE-2020-12422 https://access.redhat.com/security/cve/CVE-2020-12424 https://access.redhat.com/security/cve/CVE-2020-12425 https://access.redhat.com/security/cve/CVE-2020-15648 https://access.redhat.com/security/cve/CVE-2020-15653 https://access.redhat.com/security/cve/CVE-2020-15654 https://access.redhat.com/security/cve/CVE-2020-15656 https://access.redhat.com/security/cve/CVE-2020-15658 https://access.redhat.com/security/cve/CVE-2020-15673 https://access.redhat.com/security/cve/CVE-2020-15676 https://access.redhat.com/security/cve/CVE-2020-15677 https://access.redhat.com/security/cve/CVE-2020-15678 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: firefox-78.3.0-1.el7_9.src.rpm
x86_64: firefox-78.3.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.3.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-78.3.0-1.el7_9.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-78.3.0-1.el7_9.src.rpm
ppc64: firefox-78.3.0-1.el7_9.ppc64.rpm firefox-debuginfo-78.3.0-1.el7_9.ppc64.rpm
ppc64le: firefox-78.3.0-1.el7_9.ppc64le.rpm firefox-debuginfo-78.3.0-1.el7_9.ppc64le.rpm
s390x: firefox-78.3.0-1.el7_9.s390x.rpm firefox-debuginfo-78.3.0-1.el7_9.s390x.rpm
x86_64: firefox-78.3.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.3.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64: firefox-78.3.0-1.el7_9.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-78.3.0-1.el7_9.src.rpm
x86_64: firefox-78.3.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.3.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-78.3.0-1.el7_9.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
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:4080-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4080
Issue date: 2020-09-29

Topic

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 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.

Topics%20covered

Topics Covered

security advisory update bug fix Red Hat Enterprise Linux important firefox web browser

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) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1861645 - CVE-2020-15653 Mozilla: Bypassing iframe sandbox when allowing popups

1861646 - CVE-2020-15656 Mozilla: Type confusion for special arguments in IonMonkey

1861647 - CVE-2020-15658 Mozilla: Overriding file type when saving to disk

1861649 - CVE-2020-15654 Mozilla: Custom cursor can overlay user interface

1868842 - Warnings displayed when removing Firefox package [rhel-7.9.z]

1872537 - CVE-2020-15648 Mozilla: X-Frame-Options bypass using object or embed tags

1872538 - CVE-2020-12422 Mozilla: Integer overflow in nsJPEGEncoder::emptyOutputBuffer

1872539 - CVE-2020-12424 Mozilla: WebRTC permission prompt could have been bypassed by a compromised content process

1872540 - CVE-2020-12425 Mozilla: Out of bound read in Date.parse()

1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect

1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element

1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario

1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3

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