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Opera, possibly before 9.25, uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an "SSL tampering" attack.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Gentoo Linux | — | Upgrade www-client/opera. | Oct 30, 2017 | Jun 15, 2009 |
| Suse | — | Upgrade opera | Feb 17, 2015 | Jun 15, 2009 |
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