Red Hat Security Advisory: thunderbird security update

CVE-2021-38503 — Mozilla: iframe sandbox rules did not apply to XSLT stylesheets CVE-2021-38504 — Mozilla: Use-after-free in file picker dialog CVE-2021-38506 — Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning CVE-2021-38507 — Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports CVE-2021-38508 — Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing CVE-2021-38509 — Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain CVE-2021-43529 — thunderbird: Memory corruption when processing S/MIME messages CVE-2021-43534 — Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3 CVE-2021-43535 — Mozilla: Use-after-free in HTTP2 Session object