# CVE-2018-12376: firefox: Memory safety bugs present in Firefox 61 and Firefox ESR 60.1

CVE-2018-12376 is fixed in 12 products on 1 platform, first by firefox 62.0+build2-0ubuntu0.18.04.3, released September 5, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-12376
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0315
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 5, 2018

## Description

Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 62.0+build2-0ubuntu0.18.04.3 | [firefox 62.0+build2-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-62.0-build2-0ubuntu0.18.04.3.md) | Sep 5, 2018 |
| Linux | firefox-globalmenu Ubuntu 18.04.6 LTS (bionic) | 62.0+build2-0ubuntu0.18.04.3 | [firefox-globalmenu 62.0+build2-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-globalmenu-62.0-build2-0ubuntu0.18.04.3.md) | Sep 5, 2018 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 62.0+build2-0ubuntu0.18.04.3 | [firefox-mozsymbols 62.0+build2-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-62.0-build2-0ubuntu0.18.04.3.md) | Sep 5, 2018 |
| Linux | firefox-testsuite Ubuntu 18.04.6 LTS (bionic) | 62.0+build2-0ubuntu0.18.04.3 | [firefox-testsuite 62.0+build2-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-testsuite-62.0-build2-0ubuntu0.18.04.3.md) | Sep 5, 2018 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [thunderbird 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | thunderbird-globalmenu Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [thunderbird-globalmenu 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [thunderbird-gnome-support 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [thunderbird-mozsymbols 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | thunderbird-testsuite Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [thunderbird-testsuite 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [xul-ext-calendar-timezones 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [xul-ext-gdata-provider 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:60.2.1+build1-0ubuntu0.18.04.2 | [xul-ext-lightning 1:60.2.1+build1-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-60.2.1-build1-0ubuntu0.18.04.2.md) | Feb 28, 2019 |

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