Use After Free Affecting firefox package, versions <77.0-1


0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.25% (64th percentile)
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NVD
5.3 medium
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SUSE
7.5 high
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Red Hat
5.3 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-570856
  • published 2 Jun 2020
  • disclosed 9 Jul 2020

How to fix?

Upgrade Debian:unstable firefox to version 77.0-1 or higher.

NVD Description

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

When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.