thunderbird: A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid di...
CVE-2018-18509 is fixed in 8 products on 1 platform, first by thunderbird 1:60.5.1+build2-0ubuntu0.18.04.1, released February 13, 2019. It is not reported as exploited. Patch Radar priority: Routine.
A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| thunderbird · RHEL 8 | 0:60.6.1-1.el8 | RHSA-2019:1144 | May 13, 2019 |
| thunderbird · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | thunderbird 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| thunderbird-globalmenu · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | thunderbird-globalmenu 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | thunderbird-gnome-support 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | thunderbird-mozsymbols 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| thunderbird-testsuite · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | thunderbird-testsuite 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | xul-ext-calendar-timezones 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | xul-ext-gdata-provider 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
| xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) | 1:60.5.1+build2-0ubuntu0.18.04.1 | xul-ext-lightning 1:60.5.1+build2-0ubuntu0.18.04.1 | Feb 13, 2019 |
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