# CVE-2018-12366: firefox: An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as...

CVE-2018-12366 is fixed in 12 products on 1 platform, first by firefox 61.0+build3-0ubuntu0.18.04.1, released June 26, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-12366
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0316
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 26, 2018

## Description

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 61.0+build3-0ubuntu0.18.04.1 | [firefox 61.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-61.0-build3-0ubuntu0.18.04.1.md) | Jun 26, 2018 |
| Linux | firefox-globalmenu Ubuntu 18.04.6 LTS (bionic) | 61.0+build3-0ubuntu0.18.04.1 | [firefox-globalmenu 61.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-globalmenu-61.0-build3-0ubuntu0.18.04.1.md) | Jun 26, 2018 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 61.0+build3-0ubuntu0.18.04.1 | [firefox-mozsymbols 61.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-61.0-build3-0ubuntu0.18.04.1.md) | Jun 26, 2018 |
| Linux | firefox-testsuite Ubuntu 18.04.6 LTS (bionic) | 61.0+build3-0ubuntu0.18.04.1 | [firefox-testsuite 61.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-testsuite-61.0-build3-0ubuntu0.18.04.1.md) | Jun 26, 2018 |
| 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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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