Opera 9 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Opera_browser | Opera | 9.0 (including) | 9.0 (including) |
| Opera | Ubuntu | edgy | * |
| Opera | Ubuntu | feisty | * |