Описание
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability was fixed in Thunderbird 147.0.1 and Thunderbird 140.7.1.
A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
When a user explicitly requested Thunderbird to decrypt an inline
OpenPGP message that was embedded in a text section of an email
that was formatted and styled with HTML and CSS, then the
decrypted contents were rendered in a context in which the CSS
styles from the outer messages were active. If the user had
additionally allowed loading of the remote content referenced by
the outer email message, and the email was crafted by the sender
using a combination of CSS rules and fonts and animations, then
it was possible to extract the secret contents of the email.
Отчет
ed Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | rhel10/thunderbird-flatpak | Not affected | ||
| Red Hat Enterprise Linux 10 | thunderbird | Not affected | ||
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | ||
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | ||
| Red Hat Enterprise Linux 8 | thunderbird | Not affected | ||
| Red Hat Enterprise Linux 9 | thunderbird | Not affected |
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Дополнительная информация
EPSS
6.1 Medium
CVSS3
Связанные уязвимости
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability was fixed in Thunderbird 147.0.1 and Thunderbird 140.7.1.
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability was fixed in Thunderbird 147.0.1 and Thunderbird 140.7.1.
When a user explicitly requested Thunderbird to decrypt an inline Open ...
CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.
EPSS
6.1 Medium
CVSS3