CVE-2022-45403

Mozilla: Service Workers might have learned size of cross-origin media files

Published Dec 22, 2022 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3196-1 thunderbird security update
Debian DLA Debian DLA DLA-3199-1 firefox-esr security update
Debian DSA Debian DSA DSA-5282-1 firefox-esr security update
Debian DSA Debian DSA DSA-5284-1 thunderbird security update
EUVD EUVD EUVD-2022-48275 Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
Ubuntu USN Ubuntu USN USN-5726-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5824-1 Thunderbird vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Apr 15, 2025, 3:17 PM
Reserved
Nov 14, 2022, 12:00 AM
Status
Modified
Published
Dec 22, 2022, 8:15 PM
Modified
Jun 17, 2026, 5:10 AM
Severity
Important
Public date
Nov 15, 2022, 12:00 AM