Security Vulnerabilities fixed in thunderbird RHSA-2021:2883

Description

Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.12.0. Security Fix(es): Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed (CVE-2021-29969) Mozilla: Use-after-free in accessibility features of a document (CVE-2021-29970) Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 (CVE-2021-29976) chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547) Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed (CVE-2021-29969) Mozilla: Use-after-free in accessibility features of a document (CVE-2021-29970) Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12 (CVE-2021-29976) chromium-browser: Out of bounds write in ANGLE (CVE-2021-30547) 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. SolutionFor 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 Applications

thunderbird

CVE References

CVE-2021-29970 CVE-2021-30547 CVE-2021-29976 CVE-2021-29969

Other References

https://access.redhat.com/errata/RHSA-2021:2883