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

Synopsis:          Critical: firefox security update
Advisory ID:       RHSA-2022:4767-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:4767
Issue date:        2022-05-27
CVE Names:         CVE-2022-1529 CVE-2022-1802
====================================================================
1. Summary:

An update for firefox is now available for Red Hat Enterprise Linux 8.1
Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact
of Critical. 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 AppStream E4S (v. 8.1) - ppc64le, 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 91.9.1 ESR.

Security Fix(es):

* Mozilla: Untrusted input used in JavaScript object indexing, leading to
prototype pollution (CVE-2022-1529)

* Mozilla: Prototype pollution in Top-Level Await implementation
(CVE-2022-1802)

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/):

2089217 - CVE-2022-1802 Mozilla: Prototype pollution in Top-Level Await implementation
2089218 - CVE-2022-1529 Mozilla: Untrusted input used in JavaScript object indexing, leading to prototype pollution

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.1):

Source:
firefox-91.9.1-1.el8_1.src.rpm

ppc64le:
firefox-91.9.1-1.el8_1.ppc64le.rpm
firefox-debuginfo-91.9.1-1.el8_1.ppc64le.rpm
firefox-debugsource-91.9.1-1.el8_1.ppc64le.rpm

x86_64:
firefox-91.9.1-1.el8_1.x86_64.rpm
firefox-debuginfo-91.9.1-1.el8_1.x86_64.rpm
firefox-debugsource-91.9.1-1.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/

7. References:

https://access.redhat.com/security/cve/CVE-2022-1529
https://access.redhat.com/security/cve/CVE-2022-1802
https://access.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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