CVE-2020-26978 Affecting firefox-esr package, versions <78.6.0esr-1~deb10u1


0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed

    Threat Intelligence

    EPSS 0.1% (42nd percentile)
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NVD
6.1 medium
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SUSE
6.1 medium
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Red Hat
6.1 medium

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  • Snyk ID SNYK-DEBIAN10-FIREFOXESR-1051670
  • published 16 Dec 2020
  • disclosed 7 Jan 2021

How to fix?

Upgrade Debian:10 firefox-esr to version 78.6.0esr-1~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.