# firefox 78.0.1+build1-0ubuntu0.18.04.1: firefox 78.0.1+build1-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

firefox 78.0.1+build1-0ubuntu0.18.04.1, released June 30, 2020, fixes 11 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-78.0.1-build1-0ubuntu0.18.04.1
- Platform: Linux
- Released: Jun 30, 2020
- Priority: High (Closes CVE-2020-12417, high severity)
- CVEs: 11, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | Ubuntu 18.04.6 LTS (bionic) | 78.0.1+build1-0ubuntu0.18.04.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-12417](https://patchblox.com/security/data/cve/CVE-2020-12417.md) | High | Firefox ESR: Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier,… | 8.8 | 0.0268 |  |
| [CVE-2020-12419](https://patchblox.com/security/data/cve/CVE-2020-12419.md) | High | Firefox ESR: When processing callbacks that occurred during window flushing in the parent process, the associated… | 8.8 | 0.0232 |  |
| [CVE-2020-12422](https://patchblox.com/security/data/cve/CVE-2020-12422.md) | High | Firefox ESR: In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable… | 8.8 | 0.0194 |  |
| [CVE-2020-12420](https://patchblox.com/security/data/cve/CVE-2020-12420.md) | High | Firefox ESR: When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer,… | 8.8 | 0.0186 |  |
| [CVE-2020-12426](https://patchblox.com/security/data/cve/CVE-2020-12426.md) | High | Firefox ESR: Mozilla developers and community members reported memory safety bugs present in Firefox 77. | 8.8 | 0.0161 |  |
| [CVE-2020-12416](https://patchblox.com/security/data/cve/CVE-2020-12416.md) | High | Firefox ESR: A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink,… | 8.8 | 0.0135 |  |
| [CVE-2020-12418](https://patchblox.com/security/data/cve/CVE-2020-12418.md) | Routine | Firefox ESR: Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process… | 6.5 | 0.0303 |  |
| [CVE-2020-12421](https://patchblox.com/security/data/cve/CVE-2020-12421.md) | Routine | Firefox ESR: When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even… | 6.5 | 0.0184 |  |
| [CVE-2020-12424](https://patchblox.com/security/data/cve/CVE-2020-12424.md) | Routine | Firefox ESR: When constructing a permission prompt for WebRTC, a URI was supplied from the content process. | 6.5 | 0.0161 |  |
| [CVE-2020-12425](https://patchblox.com/security/data/cve/CVE-2020-12425.md) | Routine | Firefox ESR: Due to confusion processing a hyphen character in Date.parse(), a one-byte out of bounds read could have… | 6.5 | 0.0157 |  |
| [CVE-2020-12415](https://patchblox.com/security/data/cve/CVE-2020-12415.md) | Routine | Firefox ESR: When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed… | 6.5 | 0.0127 |  |

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Data as of 2026-11-12T19:57:06Z 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

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