The UTF-8 decoder in codecs/qutfcodec.cpp in Qt 3.3.8 and 4.2.3 does not reject long UTF-8 sequences as required by the standard, which allows remote attackers to conduct cross-site scripting (XSS) and directory traversal attacks via long sequences that decode to dangerous metacharacters.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < e354793a7ab9bb0934ea699a9d57bcd1b48fc27b |