Vulnerability Description
When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an "open redirect". Firefox no longer follows HTTP redirects to data: URLs. This vulnerability affects Firefox < 114.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 114.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811999Permissions Required
- https://security.gentoo.org/glsa/202401-10
- https://www.mozilla.org/security/advisories/mfsa2023-20/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1811999Permissions Required
- https://security.gentoo.org/glsa/202401-10
- https://www.mozilla.org/security/advisories/mfsa2023-20/Vendor Advisory
FAQ
What is CVE-2023-34415?
CVE-2023-34415 is a vulnerability with a CVSS score of 6.1 (MEDIUM). When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirec...
How severe is CVE-2023-34415?
CVE-2023-34415 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-34415?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.