CVE-2022-45403

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-47/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-49/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-48/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1762078 issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2022-45403?
CVE-2022-45403 has been scored as a medium severity vulnerability.
How to fix CVE-2022-45403?
To fix CVE-2022-45403, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-45403 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-45403 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-45403?
CVE-2022-45403 affects Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Firefox.
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