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Red Hat Enterprise Linux 7 RHSA-2022-5479-01 Critical Firefox Security Fix

red hat
Calendar Grey July 1, 2022
Dist Redhat Esm H88
The latest Mozilla Firefox security patch for Red Hat Enterprise Linux 7 resolves critical vulnerabilities and bolsters overall system defense.
An update for firefox is now available for Red Hat Enterprise Linux 7

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.

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 91.11 ESR.
Security Fix(es):
* Mozilla: CSP sandbox header without `allow-scripts` can be bypassed via retargeted javascript: URI (CVE-2022-34468)
* Mozilla: Use-after-free in nsSHistory (CVE-2022-34470)
* Mozilla: A popup window could be resized in a way to overlay the address bar with web content (CVE-2022-34479)
* Mozilla: Memory safety bugs fixed in Firefox 102 and Firefox ESR 91.11 (CVE-2022-34484)
* Mozilla: Undesired attributes could be set as part of prototype pollution (CVE-2022-2200)
* Mozilla: CSP bypass enabling stylesheet injection (CVE-2022-31744)
* Mozilla: Unavailable PAC file resulted in OCSP requests being blocked (CVE-2022-34472)
* Mozilla: Potential integer overflow in ReplaceElementsAt (CVE-2022-34481)
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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux important security patch firefox web browser

References

https://access.redhat.com/security/cve/CVE-2022-2200 https://access.redhat.com/security/cve/CVE-2022-31744 https://access.redhat.com/security/cve/CVE-2022-34468 https://access.redhat.com/security/cve/CVE-2022-34470 https://access.redhat.com/security/cve/CVE-2022-34472 https://access.redhat.com/security/cve/CVE-2022-34479 https://access.redhat.com/security/cve/CVE-2022-34481 https://access.redhat.com/security/cve/CVE-2022-34484 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: firefox-91.11.0-2.el7_9.src.rpm
x86_64: firefox-91.11.0-2.el7_9.x86_64.rpm firefox-debuginfo-91.11.0-2.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-91.11.0-2.el7_9.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-91.11.0-2.el7_9.src.rpm
ppc64: firefox-91.11.0-2.el7_9.ppc64.rpm firefox-debuginfo-91.11.0-2.el7_9.ppc64.rpm
ppc64le: firefox-91.11.0-2.el7_9.ppc64le.rpm firefox-debuginfo-91.11.0-2.el7_9.ppc64le.rpm
s390x: firefox-91.11.0-2.el7_9.s390x.rpm firefox-debuginfo-91.11.0-2.el7_9.s390x.rpm
x86_64: firefox-91.11.0-2.el7_9.x86_64.rpm firefox-debuginfo-91.11.0-2.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64: firefox-91.11.0-2.el7_9.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-91.11.0-2.el7_9.src.rpm
x86_64: firefox-91.11.0-2.el7_9.x86_64.rpm firefox-debuginfo-91.11.0-2.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-91.11.0-2.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:5479-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5479
Issue date: 2022-06-30

Topic

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 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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux important security patch firefox web browser

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

Bugs Fixed

2102161 - CVE-2022-34479 Mozilla: A popup window could be resized in a way to overlay the address bar with web content

2102162 - CVE-2022-34470 Mozilla: Use-after-free in nsSHistory

2102163 - CVE-2022-34468 Mozilla: CSP sandbox header without `allow-scripts` can be bypassed via retargeted javascript: URI

2102164 - CVE-2022-34481 Mozilla: Potential integer overflow in ReplaceElementsAt

2102165 - CVE-2022-31744 Mozilla: CSP bypass enabling stylesheet injection

2102166 - CVE-2022-34472 Mozilla: Unavailable PAC file resulted in OCSP requests being blocked

2102168 - CVE-2022-2200 Mozilla: Undesired attributes could be set as part of prototype pollution

2102169 - CVE-2022-34484 Mozilla: Memory safety bugs fixed in Firefox 102 and Firefox ESR 91.11

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