CVE-2022-40962

Mozilla: Memory safety bugs fixed in Firefox 105 and Firefox ESR 102.3

Published Dec 22, 2022 CVSS 3.1 · 8.8 High EPSS 1.4% KEV · Not listed
Description
Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3121-1 firefox-esr security update
Debian DLA Debian DLA DLA-3123-1 thunderbird security update
Debian DSA Debian DSA DSA-5237-1 firefox-esr security update
Debian DSA Debian DSA DSA-5238-1 thunderbird security update
EUVD EUVD EUVD-2022-44208 Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
Ubuntu USN Ubuntu USN USN-5649-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5724-1 Thunderbird vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Apr 15, 2025, 2:49 PM
Reserved
Sep 19, 2022, 12:00 AM
Status
Modified
Published
Dec 22, 2022, 8:15 PM
Modified
Jun 17, 2026, 5:02 AM
Severity
Important
Public date
Sep 20, 2022, 12:00 AM