# CVE-2018-18498: firefox: A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a...

CVE-2018-18498 is fixed in 12 products on 1 platform, first by firefox 64.0+build3-0ubuntu0.18.04.1, released December 10, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-18498
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0403
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 10, 2018

## Description

A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 64.0+build3-0ubuntu0.18.04.1 | [firefox 64.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-64.0-build3-0ubuntu0.18.04.1.md) | Dec 10, 2018 |
| Linux | firefox-globalmenu Ubuntu 18.04.6 LTS (bionic) | 64.0+build3-0ubuntu0.18.04.1 | [firefox-globalmenu 64.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-globalmenu-64.0-build3-0ubuntu0.18.04.1.md) | Dec 10, 2018 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 64.0+build3-0ubuntu0.18.04.1 | [firefox-mozsymbols 64.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-64.0-build3-0ubuntu0.18.04.1.md) | Dec 10, 2018 |
| Linux | firefox-testsuite Ubuntu 18.04.6 LTS (bionic) | 64.0+build3-0ubuntu0.18.04.1 | [firefox-testsuite 64.0+build3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-testsuite-64.0-build3-0ubuntu0.18.04.1.md) | Dec 10, 2018 |
| Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [thunderbird 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | thunderbird-globalmenu Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [thunderbird-globalmenu 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-globalmenu-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | thunderbird-testsuite Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [thunderbird-testsuite 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-testsuite-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |
| Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:60.4.0+build2-0ubuntu0.18.04.1 | [xul-ext-lightning 1:60.4.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-60.4.0-build2-0ubuntu0.18.04.1.md) | Jan 23, 2019 |

---

Data as of 2026-11-07T18:46:35Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.