CVE-2022-45414: Infoleak
If a Thunderbird user quoted from an HTML email, for example by replying to the email, and the email contained either a VIDEO tag with the POSTER attribute or an OBJECT tag with a DATA attribute, a network request to the referenced remote URL was performed, regardless of a configuration to block remote content. An image loaded from the POSTER attribute was shown in the composer window. These issues could have given an attacker additional capabilities when targeting releases that did not yet have a fix for CVE-2022-3033 which was reported around three months ago.
Other sources
If a Thunderbird user quoted from an HTML email, for example by replying to the email, and the email contained either a VIDEO tag with the POSTER attribute or an OBJECT tag with a DATA attribute, a network request to the referenced remote URL was performed, regardless of a configuration to block remote content. An image loaded from the POSTER attribute was shown in the composer window. These issues could have given an attacker additional capabilities when targetting releases that did not yet have a fix for CVE-2022-3033 which was reported around three months ago.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-45414?
CVE-2022-45414 has a medium severity rating due to its potential to leak user data through unintended network requests.
How do I fix CVE-2022-45414?
To fix CVE-2022-45414, upgrade to Mozilla Thunderbird version 102.5.1 or later.
What is the cause of CVE-2022-45414?
CVE-2022-45414 is caused by the improper handling of HTML email content that can trigger network requests to external URLs.
Which versions of Thunderbird are affected by CVE-2022-45414?
CVE-2022-45414 affects all versions of Mozilla Thunderbird prior to 102.5.1.
Are there any workarounds for CVE-2022-45414?
Currently, the best workaround for CVE-2022-45414 is to avoid quoting HTML emails until the software is updated.