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CVE-2021-29969

Public on 2021-08-05
Modified on 2021-09-15
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.

Severity
Important
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CVSS v3 Base Score
5.9
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core thunderbird 2021-09-08 23:35 ALAS2-2021-1709

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
NVD CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Red Hat: CVE-2021-29969 Mitre: CVE-2021-29969 FAQs regarding Amazon Linux ALAS/CVE Severity