CVE-2022-45403 Information disclosure in Firefox
Service workers could infer media file details via timing attacks, allowing attackers to read sensitive information about cross-origin resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-45403?
CVE-2022-45403 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-203
Which versions are affected by CVE-2022-45403?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2022-45403?
Upgrade to a fixed version.
Is CVE-2022-45403 being exploited?
There is no known exploitation of CVE-2022-45403 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2022-45403, GHSA-4p72-6jxp-vmqx, UBUNTU-CVE-2022-45403.