# firefox 75.0+build3-0ubuntu1: firefox 75.0+build3-0ubuntu1 for Ubuntu 20.04 LTS (focal)

firefox 75.0+build3-0ubuntu1, released April 6, 2020, fixes 8 CVEs in firefox. 2 of them are being exploited (CVE-2020-6820); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-75.0-build3-0ubuntu1
- Platform: Linux
- Released: Apr 6, 2020
- Priority: Patch now (Closes CVE-2020-6820, exploited (CISA KEV))
- CVEs: 8, exploited: 2, on CISA KEV: 2

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-6820](https://patchblox.com/security/data/cve/CVE-2020-6820.md) | Patch now | Mozilla Firefox And Thunderbird Use-After-Free Vulnerability | 8.8 | 0.0706 | CISA KEV |
| [CVE-2020-6819](https://patchblox.com/security/data/cve/CVE-2020-6819.md) | Patch now | Mozilla Firefox And Thunderbird Use-After-Free Vulnerability | 8.8 | 0.0304 | CISA KEV |
| [CVE-2020-6825](https://patchblox.com/security/data/cve/CVE-2020-6825.md) | High | Firefox ESR: Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs… | 9.8 | 0.0219 |  |
| [CVE-2020-6823](https://patchblox.com/security/data/cve/CVE-2020-6823.md) | High | Firefox ESR: A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling… | 9.8 | 0.0161 |  |
| [CVE-2020-6821](https://patchblox.com/security/data/cve/CVE-2020-6821.md) | High | Firefox ESR: When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code>… | 7.5 | 0.0151 |  |
| [CVE-2020-6826](https://patchblox.com/security/data/cve/CVE-2020-6826.md) | High | Firefox ESR: Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in… | 9.8 | 0.0143 |  |
| [CVE-2020-6822](https://patchblox.com/security/data/cve/CVE-2020-6822.md) | High | Firefox ESR: On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB… | 8.8 | 0.0133 |  |
| [CVE-2020-6824](https://patchblox.com/security/data/cve/CVE-2020-6824.md) | Routine | Firefox ESR: Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the… | 2.8 | 0.0027 |  |

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