QID 239938

Date Published: 2021-12-10

QID 239938: Red Hat Update for thunderbird (RHSA-2021:5046)

mozilla thunderbird is a standalone mail and newsgroup client.

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)

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 power, little endian 7 ppc64le



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2021:5046 for updates and patch information.
    Vendor References

    CVEs related to QID 239938

    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 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:5046 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:5046
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