RHSA-2021:5015: Red Hat Security Advisory: firefox security update

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Issued:

2021-12-08

Updated:

2021-12-08

RHSA-2021:5015 - 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 8.4 Extended Update Support.

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 for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.4 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 8.4 ppc64le
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4 x86_64

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 for x86_64 - Extended Update Support 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

x86_64

firefox-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 3905dcc18d7db87587c839d341296cb2ac773b9c9bb0bbcf87cf33cad59cbb95

firefox-debuginfo-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 1c16720e3a12b11f34f1fe08927f99e115250e0f5a9a6b49be3bbeac28ecd9ae

firefox-debugsource-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 8dec5f3b905798893eb477daa5284ae5de6fe2f18b5ee583fda65408be686bac

Red Hat Enterprise Linux Server - AUS 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

x86_64

firefox-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 3905dcc18d7db87587c839d341296cb2ac773b9c9bb0bbcf87cf33cad59cbb95

firefox-debuginfo-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 1c16720e3a12b11f34f1fe08927f99e115250e0f5a9a6b49be3bbeac28ecd9ae

firefox-debugsource-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 8dec5f3b905798893eb477daa5284ae5de6fe2f18b5ee583fda65408be686bac

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

s390x

firefox-91.4.0-1.el8_4.s390x.rpm

SHA-256: 238d48025d67cdf3c14fb1e599f9fa2a02eb9f843b059a218335d28b3bcc0cc9

firefox-debuginfo-91.4.0-1.el8_4.s390x.rpm

SHA-256: c440921233f82ad5ac9c4676b31d6da7ff7aec1334bcb73abff55bee9e264a83

firefox-debugsource-91.4.0-1.el8_4.s390x.rpm

SHA-256: a71a6e2aae4a5bbaa12140635a83e5a15c3504911c454f9e82504e58da156f27

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

ppc64le

firefox-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: d8400764cdbfa31b3de8fc66d8756f25cfafc072a1cae079107f6a0ab2d5acd5

firefox-debuginfo-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: 0ce2fc3fd4e07c98666bbeaf9d2c7c02075facc670433d779e452d4c27a073b5

firefox-debugsource-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: 2c17aebf2df1a4d9383bd96c79ddbe50be8ce21ee079dab018a1449c1f178793

Red Hat Enterprise Linux Server - TUS 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

x86_64

firefox-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 3905dcc18d7db87587c839d341296cb2ac773b9c9bb0bbcf87cf33cad59cbb95

firefox-debuginfo-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 1c16720e3a12b11f34f1fe08927f99e115250e0f5a9a6b49be3bbeac28ecd9ae

firefox-debugsource-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 8dec5f3b905798893eb477daa5284ae5de6fe2f18b5ee583fda65408be686bac

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

aarch64

firefox-91.4.0-1.el8_4.aarch64.rpm

SHA-256: d925f7c6bba3677a0d947f1e794ffefce69a31fd4928749621866501abfd206b

firefox-debuginfo-91.4.0-1.el8_4.aarch64.rpm

SHA-256: eb3d3416ecccca0b324988b02f480a610a5512d4d4f86b6af07b698cf79201c7

firefox-debugsource-91.4.0-1.el8_4.aarch64.rpm

SHA-256: 5828d0ff38dce9d89a1671f437e8ca6dcefad39331d40cd302294452e8500a44

Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

ppc64le

firefox-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: d8400764cdbfa31b3de8fc66d8756f25cfafc072a1cae079107f6a0ab2d5acd5

firefox-debuginfo-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: 0ce2fc3fd4e07c98666bbeaf9d2c7c02075facc670433d779e452d4c27a073b5

firefox-debugsource-91.4.0-1.el8_4.ppc64le.rpm

SHA-256: 2c17aebf2df1a4d9383bd96c79ddbe50be8ce21ee079dab018a1449c1f178793

Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4

SRPM

firefox-91.4.0-1.el8_4.src.rpm

SHA-256: 2cb2630835933559bb7df6971f285d141ed3071106f2ad3d0dad81ff6b92b153

x86_64

firefox-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 3905dcc18d7db87587c839d341296cb2ac773b9c9bb0bbcf87cf33cad59cbb95

firefox-debuginfo-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 1c16720e3a12b11f34f1fe08927f99e115250e0f5a9a6b49be3bbeac28ecd9ae

firefox-debugsource-91.4.0-1.el8_4.x86_64.rpm

SHA-256: 8dec5f3b905798893eb477daa5284ae5de6fe2f18b5ee583fda65408be686bac

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