RHSA-2021:5014: Red Hat Security Advisory: firefox security update

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Issued:

2021-12-08

Updated:

2021-12-08

RHSA-2021:5014 - Security Advisory

• Overview
• Updated Packages

Synopsis

Important: firefox security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

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 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.

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.

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.

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

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

CVEs

• 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

Red Hat Enterprise Linux Server 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

x86_64

firefox-91.4.0-1.el7_9.i686.rpm

SHA-256: ab499e35aba64e3b42b8c9dede9fba3f92ed0cfdfec3c36d666f3af7ef3ec23b

firefox-91.4.0-1.el7_9.x86_64.rpm

SHA-256: b75924a9ad291004c094d519f2cddb448f4114b992176051c86e2a48f147e9cb

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

SHA-256: 121ac93a8eaa284afbb897d110859c086d7e48ed8845a447aae7b4a2fcaf7e52

Red Hat Enterprise Linux Workstation 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

x86_64

firefox-91.4.0-1.el7_9.i686.rpm

SHA-256: ab499e35aba64e3b42b8c9dede9fba3f92ed0cfdfec3c36d666f3af7ef3ec23b

firefox-91.4.0-1.el7_9.x86_64.rpm

SHA-256: b75924a9ad291004c094d519f2cddb448f4114b992176051c86e2a48f147e9cb

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

SHA-256: 121ac93a8eaa284afbb897d110859c086d7e48ed8845a447aae7b4a2fcaf7e52

Red Hat Enterprise Linux Desktop 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

x86_64

firefox-91.4.0-1.el7_9.i686.rpm

SHA-256: ab499e35aba64e3b42b8c9dede9fba3f92ed0cfdfec3c36d666f3af7ef3ec23b

firefox-91.4.0-1.el7_9.x86_64.rpm

SHA-256: b75924a9ad291004c094d519f2cddb448f4114b992176051c86e2a48f147e9cb

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

SHA-256: 121ac93a8eaa284afbb897d110859c086d7e48ed8845a447aae7b4a2fcaf7e52

Red Hat Enterprise Linux for IBM z Systems 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

s390x

firefox-91.4.0-1.el7_9.s390x.rpm

SHA-256: ba2afe2b88687246e9d42e68c0c6987dd2330c0f41c301db290a1fd34829f989

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

SHA-256: 15de0f707c78a9bb153ab70e30924da9cfec514c77a37ce0a4002ec8105628e3

Red Hat Enterprise Linux for Power, big endian 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

ppc64

firefox-91.4.0-1.el7_9.ppc64.rpm

SHA-256: d84fb65459a1511713d8e0f2199fae3da1c072a261e7d8f725f9f3d3204c4b30

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

SHA-256: 4103d34c044e7567c1c49fd2960aaefdcc1146fa76ad86d5b4bee24c6a041c4d

Red Hat Enterprise Linux for Power, little endian 7

SRPM

firefox-91.4.0-1.el7_9.src.rpm

SHA-256: e68ed620b169d912f6fc9f76b4a951ce5bf08069929933ea9d7fa773d7baec5e

ppc64le

firefox-91.4.0-1.el7_9.ppc64le.rpm

SHA-256: 0075c5834bc04389d036560b6c5ff16edb296ac845b735418e89503520fe1a5b

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

SHA-256: 796a87a1e9a9874120aeb3a70bf11cf29fefdc4d498665852f56330bcbe36472

The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.