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Red Hat Product Errata RHSA-2021:5055 - Security Advisory
Issued:
2021-12-09
Updated:
2021-12-09

RHSA-2021:5055 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: thunderbird 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 thunderbird 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 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 Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 91.4.0.

Security Fix(es):

  • Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4 (BZ#2030116)
  • 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: JavaScript unexpectedly enabled for the composition area (CVE-2021-43528)
  • 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

All running instances of Thunderbird must be restarted for the update to take effect.

Affected Products

  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1 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
  • BZ - 2030137 - CVE-2021-43528 Mozilla: JavaScript unexpectedly enabled for the composition area

CVEs

  • CVE-2021-4129
  • CVE-2021-43528
  • 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

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1

SRPM
thunderbird-91.4.0-2.el8_1.src.rpm SHA-256: 26e1b2b49947f512b1d018c334750828b0fa47376d2dfada71486c594a35971f
ppc64le
thunderbird-91.4.0-2.el8_1.ppc64le.rpm SHA-256: 8f2dfc9442b375c883801a5f4cbab5b1830ce63c290869435c1a28b8ae0cef7e
thunderbird-debuginfo-91.4.0-2.el8_1.ppc64le.rpm SHA-256: 8fcade25851d03f6ff434e5e47fa29bc1e24cdbd93f821d43bcd68ac0dabc68a
thunderbird-debugsource-91.4.0-2.el8_1.ppc64le.rpm SHA-256: 36a0fe865dc6c86c0a7a7433f19781f416c99d1e0333d3693ad23bc5481ddbad

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1

SRPM
thunderbird-91.4.0-2.el8_1.src.rpm SHA-256: 26e1b2b49947f512b1d018c334750828b0fa47376d2dfada71486c594a35971f
x86_64
thunderbird-91.4.0-2.el8_1.x86_64.rpm SHA-256: 2896bd515a71682d1069c228e247a029be2ba61c4d0056233e67075515ba9a39
thunderbird-debuginfo-91.4.0-2.el8_1.x86_64.rpm SHA-256: 7e3b549ff53d86d936e1791c6c9ca582c0a288e685e634f12b0f947d76b5dfac
thunderbird-debugsource-91.4.0-2.el8_1.x86_64.rpm SHA-256: 06650a9ca9f963ffbd118522e28342d6c57b85936c7eb5c3758e5014ceca9ba6

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

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