RedHat: RHSA-2020-5257:01 Important: firefox security update
Summary
Mozilla Firefox is an open-source web browser, designed for standards
compliance, performance, and portability.
This update upgrades Firefox to version 78.5.0 ESR.
Security Fix(es):
* Mozilla: Parsing mismatches could confuse and bypass security sanitizer
for chrome privileged code (CVE-2020-26951)
* Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5
(CVE-2020-26968)
* Mozilla: Variable time processing of cross-origin images during drawImage
calls (CVE-2020-16012)
* Mozilla: Fullscreen could be enabled without displaying the security UI
(CVE-2020-26953)
* Mozilla: XSS through paste (manual and clipboard API) (CVE-2020-26956)
* Mozilla: Requests intercepted through ServiceWorkers lacked MIME type
restrictions (CVE-2020-26958)
* Mozilla: Use-after-free in WebRequestService (CVE-2020-26959)
* Mozilla: Potential use-after-free in uses of nsTArray (CVE-2020-26960)
* Mozilla: DoH did not filter IPv4 mapped IP Addresses (CVE-2020-26961)
* Mozilla: Software keyboards may have remembered typed passwords
(CVE-2020-26965)
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.
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-2020-16012 https://access.redhat.com/security/cve/CVE-2020-26951 https://access.redhat.com/security/cve/CVE-2020-26953 https://access.redhat.com/security/cve/CVE-2020-26956 https://access.redhat.com/security/cve/CVE-2020-26958 https://access.redhat.com/security/cve/CVE-2020-26959 https://access.redhat.com/security/cve/CVE-2020-26960 https://access.redhat.com/security/cve/CVE-2020-26961 https://access.redhat.com/security/cve/CVE-2020-26965 https://access.redhat.com/security/cve/CVE-2020-26968 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
firefox-78.5.0-1.el6_10.src.rpm
i386:
firefox-78.5.0-1.el6_10.i686.rpm
x86_64:
firefox-78.5.0-1.el6_10.x86_64.rpm
firefox-debuginfo-78.5.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
firefox-78.5.0-1.el6_10.src.rpm
x86_64:
firefox-78.5.0-1.el6_10.x86_64.rpm
firefox-debuginfo-78.5.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
firefox-78.5.0-1.el6_10.src.rpm
i386:
firefox-78.5.0-1.el6_10.i686.rpm
ppc64:
firefox-78.5.0-1.el6_10.ppc64.rpm
firefox-debuginfo-78.5.0-1.el6_10.ppc64.rpm
s390x:
firefox-78.5.0-1.el6_10.s390x.rpm
firefox-debuginfo-78.5.0-1.el6_10.s390x.rpm
x86_64:
firefox-78.5.0-1.el6_10.x86_64.rpm
firefox-debuginfo-78.5.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
firefox-78.5.0-1.el6_10.src.rpm
i386:
firefox-78.5.0-1.el6_10.i686.rpm
x86_64:
firefox-78.5.0-1.el6_10.x86_64.rpm
firefox-debuginfo-78.5.0-1.el6_10.x86_64.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/
Topic
An update for firefox is now available for Red Hat Enterprise Linux 6.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Desktop (v. 6) - i386, 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 Workstation (v. 6) - i386, x86_64
Bugs Fixed
1898731 - CVE-2020-26951 Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code
1898732 - CVE-2020-16012 Mozilla: Variable time processing of cross-origin images during drawImage calls
1898733 - CVE-2020-26953 Mozilla: Fullscreen could be enabled without displaying the security UI
1898734 - CVE-2020-26956 Mozilla: XSS through paste (manual and clipboard API)
1898735 - CVE-2020-26958 Mozilla: Requests intercepted through ServiceWorkers lacked MIME type restrictions
1898736 - CVE-2020-26959 Mozilla: Use-after-free in WebRequestService
1898737 - CVE-2020-26960 Mozilla: Potential use-after-free in uses of nsTArray
1898738 - CVE-2020-26961 Mozilla: DoH did not filter IPv4 mapped IP Addresses
1898739 - CVE-2020-26965 Mozilla: Software keyboards may have remembered typed passwords
1898741 - CVE-2020-26968 Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5
