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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Chrome | * | 46.0.2490.86 (including) | |
| Red Hat Enterprise Linux 6 Supplementary | RedHat | chromium-browser-0:47.0.2526.73-1.el6 | * |
| Chromium-browser | Ubuntu | devel | * |
| Chromium-browser | Ubuntu | precise | * |
| Chromium-browser | Ubuntu | trusty | * |
| Chromium-browser | Ubuntu | upstream | * |
| Chromium-browser | Ubuntu | vivid | * |
| Chromium-browser | Ubuntu | wily | * |
| Oxide-qt | Ubuntu | devel | * |
| Oxide-qt | Ubuntu | trusty | * |
| Oxide-qt | Ubuntu | upstream | * |
| Oxide-qt | Ubuntu | vivid | * |
| Oxide-qt | Ubuntu | vivid/stable-phone-overlay | * |
| Oxide-qt | Ubuntu | wily | * |