# CVE-2018-12372: thunderbird-mozsymbols: Decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a a HTML rep...

CVE-2018-12372 is fixed in 8 products on 1 platform, first by thunderbird 1:52.9.1+build3-0ubuntu0.18.04.1, released July 4, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-12372
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0247
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 4, 2018

## Description

Decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [thunderbird 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | thunderbird-globalmenu Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [thunderbird-globalmenu 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | thunderbird-testsuite Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [thunderbird-testsuite 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:52.9.1+build3-0ubuntu0.18.04.1 | [xul-ext-lightning 1:52.9.1+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-52.9.1-build3-0ubuntu0.18.04.1.md) | Jul 4, 2018 |

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