First published: Tue May 26 2020(Updated: )
Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, or execute arbitrary code. (CVE-2020-6831, CVE-2020-12387, CVE-2020-12395) It was discovered that the Devtools’ ‘Copy as cURL’ feature did not properly escape the HTTP POST data of a request. If a user were tricked in to using the ‘Copy as cURL’ feature to copy and paste a command with specially crafted data in to a terminal, an attacker could potentially exploit this to obtain sensitive information from local files. (CVE-2020-12392) It was discovered that Thunderbird did not correctly handle Unicode whitespace characters within the From email header. An attacker could potentially exploit this to spoof the sender email address that Thunderbird displays. (CVE-2020-12397)
Affected Software | Affected Version | How to fix |
---|---|---|
All of | ||
ubuntu/thunderbird | <1:68.8.0+build2-0ubuntu0.20.04.2 | 1:68.8.0+build2-0ubuntu0.20.04.2 |
Ubuntu Linux | =20.04 | |
All of | ||
ubuntu/thunderbird | <1:68.8.0+build2-0ubuntu0.19.10.2 | 1:68.8.0+build2-0ubuntu0.19.10.2 |
Ubuntu Linux | =19.10 | |
All of | ||
ubuntu/thunderbird | <1:68.8.0+build2-0ubuntu0.18.04.2 | 1:68.8.0+build2-0ubuntu0.18.04.2 |
Ubuntu Linux | =18.04 | |
All of | ||
ubuntu/thunderbird | <1:68.8.0+build2-0ubuntu0.16.04.2 | 1:68.8.0+build2-0ubuntu0.16.04.2 |
Ubuntu Linux | =16.04 |
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(Contains the following vulnerabilities)
The severity of USN-4373-1 is considered high due to potential execution of arbitrary code and denial of service.
To fix USN-4373-1, users should update Thunderbird to the latest version available for their Ubuntu release.
USN-4373-1 affects Thunderbird on Ubuntu versions 16.04, 18.04, 19.10, and 20.04.
USN-4373-1 includes vulnerabilities identified by CVE-2020-6831, CVE-2020-12387, and CVE-2020-12392.
Yes, USN-4373-1 can potentially allow an attacker to execute arbitrary code if the user is tricked into visiting a malicious website.