RedHat: RHSA-2020-3832:01 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 78.3.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3
(CVE-2020-15673)
* 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)
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-2020-15673 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 AppStream (v. 8):
Source:
firefox-78.3.0-1.el8_2.src.rpm
aarch64:
firefox-78.3.0-1.el8_2.aarch64.rpm
firefox-debuginfo-78.3.0-1.el8_2.aarch64.rpm
firefox-debugsource-78.3.0-1.el8_2.aarch64.rpm
ppc64le:
firefox-78.3.0-1.el8_2.ppc64le.rpm
firefox-debuginfo-78.3.0-1.el8_2.ppc64le.rpm
firefox-debugsource-78.3.0-1.el8_2.ppc64le.rpm
s390x:
firefox-78.3.0-1.el8_2.s390x.rpm
firefox-debuginfo-78.3.0-1.el8_2.s390x.rpm
firefox-debugsource-78.3.0-1.el8_2.s390x.rpm
x86_64:
firefox-78.3.0-1.el8_2.x86_64.rpm
firefox-debuginfo-78.3.0-1.el8_2.x86_64.rpm
firefox-debugsource-78.3.0-1.el8_2.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 8.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 AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
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
