CVE-2020-12406

Mozilla: JavaScript Type confusion with NativeTypes

Published Jul 9, 2020 CVSS 3.1 · 8.8 High EPSS 1.0% KEV · Not listed
Description
Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2243-1 firefox-esr security update
Debian DLA Debian DLA DLA-2247-1 thunderbird security update
Debian DSA Debian DSA DSA-4695-1 firefox-esr security update
Debian DSA Debian DSA DSA-4702-1 thunderbird security update
EUVD EUVD EUVD-2020-4718 Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Ubuntu USN Ubuntu USN USN-4383-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4421-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Aug 4, 2024, 11:56 AM
Reserved
Apr 28, 2020, 12:00 AM
Status
Modified
Published
Jul 9, 2020, 3:15 PM
Modified
Jun 17, 2026, 2:51 AM
Severity
Important
Public date
Jun 2, 2020, 12:00 AM