RHSA-2022:0536 — Security Advisory

An update for thunderbird 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 91.6.0.

Security Fix(es):

• Mozilla: Extensions could have bypassed permission confirmation during update (CVE-2022-22754)

• Mozilla: Memory safety bugs fixed in Firefox 97 and Firefox ESR 91.6 (CVE-2022-22764)

• Mozilla: Drag and dropping an image could have resulted in the dropped object being an executable (CVE-2022-22756)

• Mozilla: Sandboxed iframes could have executed script if the parent appended elements (CVE-2022-22759)

• Mozilla: Cross-Origin responses could be distinguished between script and non-script content-types (CVE-2022-22760)

• Mozilla: frame-ancestors Content Security Policy directive was not enforced for framed extension pages (CVE-2022-22761)

• Mozilla: Script Execution during invalid object state (CVE-2022-22763)

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.