CVE-2020-12405

Medium

Description

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductMozilla Firefox
PublishedJul 9, 2020
First seenJul 9, 2020

How to fix

Update
  • mozilla firefox77.0 or later
  • mozilla firefox_esr68.9.0 or later
  • mozilla thunderbird68.9.0 or later
Vendor advisories

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 77.077.0
mozilla firefox_esrv < 68.9.068.9.0
mozilla thunderbirdv < 68.9.068.9.0
canonical ubuntu_linux16.04, 18.04, 19.10, 20.04—

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