vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-23991): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:H/Au:N/C:P/I:P/A:N) | Apr 15, 2021 | Jun 23, 2021 | Mar 22, 2023 |
Severity
4
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:N)
Published
Apr 15, 2021
Added
Jun 23, 2021
Modified
Mar 22, 2023
Description
If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1.
Solution
ubuntu-upgrade-thunderbird
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