CVE-2020-35111 Affecting firefox-esr package, versions <78.6.0esr-1


0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

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

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOXESR-1051665
  • published 16 Dec 2020
  • disclosed 7 Jan 2021

How to fix?

Upgrade Debian:unstable firefox-esr to version 78.6.0esr-1 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:unstable relevant fixed versions and status.

When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.