# CVE-2016-5824: thunderbird: libical 1.0 allows remote attackers to cause a denial of service(use-after-free) via a crafted ics file.

CVE-2016-5824 is fixed in 8 products on 1 platform, first by thunderbird 1:60.5.1+build2-0ubuntu1, released January 27, 2017. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2016-5824
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0217
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 26, 2017

## Description

libical 1.0 allows remote attackers to cause a denial of service(use-after-free) via a crafted ics file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | thunderbird Ubuntu 24.10 (oracular) | 1:60.5.1+build2-0ubuntu1 | [thunderbird 1:60.5.1+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-thunderbird-1-60.5.1-build2-0ubuntu1.md) | Jan 27, 2017 |
| Linux | thunderbird Ubuntu 25.04 (plucky) | 1:60.5.1+build2-0ubuntu1 | [thunderbird 1:60.5.1+build2-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-thunderbird-1-60.5.1-build2-0ubuntu1.md) | Jan 27, 2017 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-60.5.1-build2-0ubuntu0.18.04.1.md) | Feb 13, 2019 |

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Data as of 2026-11-07T06:34:28Z 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