Red Hat Security Advisory 2021-5014-03 ≈ Packet Storm

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

Synopsis: Important: firefox security update
Advisory ID: RHSA-2021:5014-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:5014
Issue date: 2021-12-08
CVE Names: CVE-2021-43536 CVE-2021-43537 CVE-2021-43538
CVE-2021-43539 CVE-2021-43541 CVE-2021-43542
CVE-2021-43543 CVE-2021-43545 CVE-2021-43546
====================================================================
1. Summary:

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 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 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

3. Description:

Mozilla Firefox is an open-source web browser, designed for standards
compliance, performance, and portability.

This update upgrades Firefox to version 91.4.0 ESR.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4

* Mozilla: URL leakage when navigating while executing asynchronous
function (CVE-2021-43536)

* Mozilla: Heap buffer overflow when using structured clone
(CVE-2021-43537)

* Mozilla: Missing fullscreen and pointer lock notification when requesting
both (CVE-2021-43538)

* Mozilla: GC rooting failure when calling wasm instance methods
(CVE-2021-43539)

* Mozilla: External protocol handler parameters were unescaped
(CVE-2021-43541)

* Mozilla: XMLHttpRequest error codes could have leaked the existence of an
external protocol handler (CVE-2021-43542)

* Mozilla: Bypass of CSP sandbox directive when embedding (CVE-2021-43543)

* Mozilla: Denial of Service when using the Location API in a loop
(CVE-2021-43545)

* Mozilla: Cursor spoofing could overlay user interface when native cursor
is zoomed (CVE-2021-43546)

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.

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/):

2030105 - CVE-2021-43536 Mozilla: URL leakage when navigating while executing asynchronous function
2030106 - CVE-2021-43537 Mozilla: Heap buffer overflow when using structured clone
2030109 - CVE-2021-43538 Mozilla: Missing fullscreen and pointer lock notification when requesting both
2030110 - CVE-2021-43539 Mozilla: GC rooting failure when calling wasm instance methods
2030111 - CVE-2021-43541 Mozilla: External protocol handler parameters were unescaped
2030112 - CVE-2021-43542 Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler
2030113 - CVE-2021-43543 Mozilla: Bypass of CSP sandbox directive when embedding
2030114 - CVE-2021-43545 Mozilla: Denial of Service when using the Location API in a loop
2030115 - CVE-2021-43546 Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed
2030116 - Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
firefox-91.4.0-1.el7_9.src.rpm

x86_64:
firefox-91.4.0-1.el7_9.x86_64.rpm
firefox-debuginfo-91.4.0-1.el7_9.x86_64.rpm

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

x86_64:
firefox-91.4.0-1.el7_9.i686.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
firefox-91.4.0-1.el7_9.src.rpm

ppc64:
firefox-91.4.0-1.el7_9.ppc64.rpm
firefox-debuginfo-91.4.0-1.el7_9.ppc64.rpm

ppc64le:
firefox-91.4.0-1.el7_9.ppc64le.rpm
firefox-debuginfo-91.4.0-1.el7_9.ppc64le.rpm

s390x:
firefox-91.4.0-1.el7_9.s390x.rpm
firefox-debuginfo-91.4.0-1.el7_9.s390x.rpm

x86_64:
firefox-91.4.0-1.el7_9.x86_64.rpm
firefox-debuginfo-91.4.0-1.el7_9.x86_64.rpm

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

x86_64:
firefox-91.4.0-1.el7_9.i686.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
firefox-91.4.0-1.el7_9.src.rpm

x86_64:
firefox-91.4.0-1.el7_9.x86_64.rpm
firefox-debuginfo-91.4.0-1.el7_9.x86_64.rpm

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

x86_64:
firefox-91.4.0-1.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/

7. References:

https://access.redhat.com/security/cve/CVE-2021-43536
https://access.redhat.com/security/cve/CVE-2021-43537
https://access.redhat.com/security/cve/CVE-2021-43538
https://access.redhat.com/security/cve/CVE-2021-43539
https://access.redhat.com/security/cve/CVE-2021-43541
https://access.redhat.com/security/cve/CVE-2021-43542
https://access.redhat.com/security/cve/CVE-2021-43543
https://access.redhat.com/security/cve/CVE-2021-43545
https://access.redhat.com/security/cve/CVE-2021-43546
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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yeLy
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.
https://listman.redhat.com/mailman/listinfo/rhsa-announce