RedHat: RHSA-2021-2740:01 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 78.12.0 ESR.
Security Fix(es):
* Mozilla: Use-after-free in accessibility features of a document
(CVE-2021-29970)
* Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12
(CVE-2021-29976)
* chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547)
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-2021-29970 https://access.redhat.com/security/cve/CVE-2021-29976 https://access.redhat.com/security/cve/CVE-2021-30547 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux AppStream EUS (v. 8.1):
Source:
firefox-78.12.0-1.el8_1.src.rpm
aarch64:
firefox-78.12.0-1.el8_1.aarch64.rpm
firefox-debuginfo-78.12.0-1.el8_1.aarch64.rpm
firefox-debugsource-78.12.0-1.el8_1.aarch64.rpm
ppc64le:
firefox-78.12.0-1.el8_1.ppc64le.rpm
firefox-debuginfo-78.12.0-1.el8_1.ppc64le.rpm
firefox-debugsource-78.12.0-1.el8_1.ppc64le.rpm
s390x:
firefox-78.12.0-1.el8_1.s390x.rpm
firefox-debuginfo-78.12.0-1.el8_1.s390x.rpm
firefox-debugsource-78.12.0-1.el8_1.s390x.rpm
x86_64:
firefox-78.12.0-1.el8_1.x86_64.rpm
firefox-debuginfo-78.12.0-1.el8_1.x86_64.rpm
firefox-debugsource-78.12.0-1.el8_1.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 8.1Extended Update Support.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 EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1970109 - CVE-2021-30547 chromium-browser: Out of bounds write in ANGLE
1982013 - CVE-2021-29970 Mozilla: Use-after-free in accessibility features of a document
1982014 - CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12
