# thunderbird 1:78.13.0+build1-0ubuntu0.18.04.1: thunderbird 1:78.13.0+build1-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

thunderbird 1:78.13.0+build1-0ubuntu0.18.04.1, released August 10, 2021, fixes 10 CVEs in thunderbird. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-thunderbird-1-78.13.0-build1-0ubuntu0.18.04.1
- Platform: Linux
- Released: Aug 10, 2021
- Priority: High (Closes CVE-2021-30547, high severity)
- CVEs: 10, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | Ubuntu 18.04.6 LTS (bionic) | 1:78.13.0+build1-0ubuntu0.18.04.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-30547](https://patchblox.com/security/data/cve/CVE-2021-30547.md) | High | Chromium: CVE-2021-30547 Out of bounds write in ANGLE | 8.8 | 0.0361 |  |
| [CVE-2021-29985](https://patchblox.com/security/data/cve/CVE-2021-29985.md) | High | Firefox ESR and 3 others: A use-after-free vulnerability in media channels could have led to memory corruption and a potentially… | 8.8 | 0.0145 |  |
| [CVE-2021-29970](https://patchblox.com/security/data/cve/CVE-2021-29970.md) | High | Firefox ESR and 3 others: A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable… | 8.8 | 0.0143 |  |
| [CVE-2021-29980](https://patchblox.com/security/data/cve/CVE-2021-29980.md) | High | Firefox ESR and 3 others: Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption… | 8.8 | 0.0140 |  |
| [CVE-2021-29984](https://patchblox.com/security/data/cve/CVE-2021-29984.md) | High | Firefox ESR and 3 others: Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly… | 8.8 | 0.0139 |  |
| [CVE-2021-29988](https://patchblox.com/security/data/cve/CVE-2021-29988.md) | High | Firefox ESR and 3 others: Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds… | 8.8 | 0.0138 |  |
| [CVE-2021-29989](https://patchblox.com/security/data/cve/CVE-2021-29989.md) | High | Firefox ESR and 3 others: Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. | 8.8 | 0.0127 |  |
| [CVE-2021-29986](https://patchblox.com/security/data/cve/CVE-2021-29986.md) | High | firefox: ELSA-2021-3157: firefox security update (IMPORTANT) | 8.1 | 0.0126 |  |
| [CVE-2021-29976](https://patchblox.com/security/data/cve/CVE-2021-29976.md) | High | Firefox ESR and 3 others: Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. | 8.8 | 0.0122 |  |
| [CVE-2021-29969](https://patchblox.com/security/data/cve/CVE-2021-29969.md) | Routine | Thunderbird and 1 other: If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server… | 5.9 | 0.0120 |  |

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Data as of 2026-11-13T20:04:13Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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