File Extension Spoofing using the Text Direction Override Character
CVE-2023-3417 is fixed in 7 products on 2 platforms, first by DEBIAN-CVE-2023-3417, released July 24, 2023. It is not reported as exploited. Patch Radar priority: High.
Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Thunderbird (en-US) | 115.8.0 | Mozilla Thunderbird (en-US) 115.8.0 | Feb 21, 2024 |
| Linux | |||
| thunderbird · Debian 11.6 (bullseye) | 1:102.13.1-1~deb11u1 | DSA-5463-1 | Jul 30, 2023 |
| thunderbird · Debian 12.15 (bookworm) | 1:102.13.1-1~deb12u1 | DSA-5463-1 | Jul 30, 2023 |
| thunderbird · Debian 13.5 (trixie) | 1:102.13.1-1 | DEBIAN-CVE-2023-3417 | Jul 24, 2023 |
| thunderbird · Debian 14 | 1:102.13.1-1 | DEBIAN-CVE-2023-3417 | Jul 24, 2023 |
| thunderbird · RHEL 8 | 0:102.14.0-1.el8_8 | RHSA-2023:4497 | Aug 7, 2023 |
| thunderbird · RHEL 9 | 0:102.14.0-1.el9_2 | RHSA-2023:4499 | Aug 7, 2023 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| thunderbird · almalinux 8 | 102.14.0-1.el8_8.alma | ALSA-2023:4497 | Aug 7, 2023 |
| thunderbird · almalinux 9 | 102.14.0-1.el9_2.alma | ALSA-2023:4499 | Aug 7, 2023 |
| thunderbird · ol 8 | 0:102.14.0-1.0.1.el8_8 | ELSA-2023-4497 | Aug 9, 2023 |
| thunderbird · ol 9 | 0:102.14.0-1.0.1.el9_2 | ELSA-2023-4499 | Aug 8, 2023 |
| thunderbird · rocky 8 | 0:102.14.0-1.el8_8 | RLSA-2023:4497 | Aug 8, 2023 |
| thunderbird · rocky 9 | 0:102.14.0-1.el9_2 | RLSA-2023:4499 | Aug 8, 2023 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird-gnome-support 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird-gnome-support 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird-mozsymbols 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird-mozsymbols 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-calendar-timezones 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-calendar-timezones 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-gdata-provider 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-gdata-provider 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-lightning 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-lightning 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
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