thunderbird-78.12.0-2.0.1.AXS4

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)

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.

CVE-2021-29969
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-29970
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-29976
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-30547
Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a
remote attacker to potentially perform out of bounds memory access via a crafted
HTML page.