Insufficient Verification of Data Authenticity Affecting thunderbird package, versions <0:78.12.0-2.el7_9


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-1407190
  • published26 Jul 2021
  • disclosed13 Jul 2021

Introduced: 13 Jul 2021

CVE-2021-29969  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:78.12.0-2.el7_9 or higher.
This issue was patched in RHSA-2021:2881.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1