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The CSPSource::hostMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in Google Chrome before 47.0.2526.73 accepts an x.y hostname as a match for a *.x.y pattern, which might allow remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging a policy that was intended to be specific to subdomains.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade chromium-browser | Dec 14, 2015 | Dec 5, 2015 |
| Freebsd | — | Upgrade chromiumUpgrade chromium-pulseUpgrade chromium-npapi | Dec 10, 2025 | Dec 2, 2015 |
| Gentoo Linux | — | Upgrade www-client/chromium. | Oct 30, 2017 | Dec 5, 2015 |
| Google Chrome | — | Upgrade to the latest version of Google Chrome | Dec 9, 2015 | Dec 1, 2015 |
| Suse | — | Upgrade chromium | Dec 18, 2015 | Dec 5, 2015 |
| Ubuntu | — | Upgrade liboxideqtcore0 | Dec 14, 2015 | Dec 5, 2015 |
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