CVE-2021-29969
Description
If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server. This vulnerability affects Thunderbird < 78.12.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29969
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:2883
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-29969.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202107-21
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 78.12.0-1 | |
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 1:78.12.0-1 |
| debian | bullseye | fixed | 1:78.12.0-1 |
| debian | forky | fixed | 1:78.12.0-1 |
| debian | sid | fixed | 1:78.12.0-1 |
| debian | trixie | fixed | 1:78.12.0-1 |
References
Verify integrity in audit chain (admin only). AS-IS.