# ELSA-2020-0820: firefox security update

ELSA-2020-0820, released March 16, 2020, fixes 7 CVEs in firefox (version 0:68.6.0-1.0.1.el8_1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2020-0820
- Platform: Linux
- Released: Mar 16, 2020
- Priority: High (Closes CVE-2020-6811, high severity)
- CVEs: 7, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2020-0820.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | ol 8 | 0:68.6.0-1.0.1.el8_1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-6811](https://patchblox.com/security/data/cve/CVE-2020-6811.md) | High | Firefox ESR: The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request,… | 8.8 | 0.0327 |  |
| [CVE-2020-6806](https://patchblox.com/security/data/cve/CVE-2020-6806.md) | High | Firefox ESR: By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end… | 8.8 | 0.0261 |  |
| [CVE-2020-6814](https://patchblox.com/security/data/cve/CVE-2020-6814.md) | High | Firefox ESR: Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. | 9.8 | 0.0187 |  |
| [CVE-2020-6805](https://patchblox.com/security/data/cve/CVE-2020-6805.md) | High | Firefox ESR: When removing data about an origin whose tab was recently closed, a use-after-free could occur in the… | 8.8 | 0.0149 |  |
| [CVE-2020-6807](https://patchblox.com/security/data/cve/CVE-2020-6807.md) | High | Firefox ESR: When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task… | 8.8 | 0.0147 |  |
| [CVE-2019-20503](https://patchblox.com/security/data/cve/CVE-2019-20503.md) | Routine | xul-ext-lightning: usrsctp before 2019-12-20 has out-of-bounds reads in sctp_load_addresses_from_init. | 6.5 | 0.0314 |  |
| [CVE-2020-6812](https://patchblox.com/security/data/cve/CVE-2020-6812.md) | Routine | Firefox ESR: The first time AirPods are connected to an iPhone, they become named after the user's name by default… | 6.1 | 0.0160 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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