# CVE-2023-0616: Mozilla Thunderbird and 1 other: Allocation of Resources Without Limits or Throttling

CVE-2023-0616 is fixed in 7 products on 2 platforms, first by thunderbird 1:102.8.0+build2-0ubuntu0.18.04.1, released February 19, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-0616
- Priority: High
- CVSS: 7.5 (important)
- EPSS: 0.0049
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 19, 2023
- Weakness: CWE-770: Allocation of Resources Without Limits or Throttling
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-0616

## Description

If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions. An attacker could send a crafted message with this structure to attempt a DoS attack. This vulnerability affects Thunderbird < 102.8.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Thunderbird (en-US) | 115.8.0 | [Mozilla Thunderbird (en-US) 115.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-115.8.0.md) | Feb 21, 2024 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:102.8.0-1 | [DEBIAN-CVE-2023-0616](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0616.md) | Jun 2, 2023 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:102.8.0-1 | [DEBIAN-CVE-2023-0616](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0616.md) | Jun 2, 2023 |
| Linux | thunderbird Debian 14 | 1:102.8.0-1 | [DEBIAN-CVE-2023-0616](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0616.md) | Jun 2, 2023 |
| Linux | thunderbird RHEL 8 | 0:102.8.0-2.el8_7 | [RHSA-2023:0821](https://patchblox.com/security/data/fix/linux/rhsa-2023-0821.md) | Feb 20, 2023 |
| Linux | thunderbird RHEL 9 | 0:102.8.0-2.el9_1 | [RHSA-2023:0824](https://patchblox.com/security/data/fix/linux/rhsa-2023-0824.md) | Feb 20, 2023 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [thunderbird 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [thunderbird 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [thunderbird 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird almalinux 8 | 102.8.0-2.el8_7.alma | [ALSA-2023:0821](https://patchblox.com/security/data/fix/linux/alsa-2023-0821.md) | Feb 20, 2023 |
| Linux | thunderbird almalinux 9 | 102.8.0-2.el9_1.alma | [ALSA-2023:0824](https://patchblox.com/security/data/fix/linux/alsa-2023-0824.md) | Feb 20, 2023 |
| Linux | thunderbird ol 8 | 0:102.8.0-2.0.1.el8_7 | [ELSA-2023-0821](https://patchblox.com/security/data/fix/linux/elsa-2023-0821.md) | Feb 20, 2023 |
| Linux | thunderbird ol 9 | 0:102.8.0-2.0.1.el9_1 | [ELSA-2023-0824](https://patchblox.com/security/data/fix/linux/elsa-2023-0824.md) | Feb 20, 2023 |
| Linux | thunderbird rocky 8 | 0:102.8.0-2.el8_7 | [RLSA-2023:0821](https://patchblox.com/security/data/fix/linux/rlsa-2023-0821.md) | Feb 22, 2023 |
| Linux | thunderbird rocky 9 | 0:102.8.0-2.el9_1 | [RLSA-2023:0824](https://patchblox.com/security/data/fix/linux/rlsa-2023-0824.md) | Feb 22, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:102.8.0+build2-0ubuntu0.18.04.1 | [xul-ext-lightning 1:102.8.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-102.8.0-build2-0ubuntu0.18.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:102.8.0+build2-0ubuntu0.20.04.1 | [xul-ext-lightning 1:102.8.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-102.8.0-build2-0ubuntu0.20.04.1.md) | Feb 19, 2023 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:102.8.0+build2-0ubuntu0.22.04.1 | [xul-ext-lightning 1:102.8.0+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-102.8.0-build2-0ubuntu0.22.04.1.md) | Feb 19, 2023 |

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