CVE-2023-50761

Mozilla: S/MIME signature accepted despite mismatching message date

Published Dec 19, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3698-1 thunderbird security update
Debian DSA Debian DSA DSA-5582-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-6563-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Feb 13, 2025, 5:19 PM
Reserved
Dec 12, 2023, 4:29 PM
Status
Modified
Published
Dec 19, 2023, 2:15 PM
Modified
Jun 17, 2026, 6:39 AM
Severity
Important
Public date
Dec 19, 2023, 12:00 AM