Critical · published December 25, 2023
⚠️ A sneaky integer overflow check in Qt’s HTTP2 implementation could lead to unexpected behavior in versions before 5.15.17 and 6.6.2! Think of this vulnerability like a delivery truck that overloaded its cargo — at some point, the truck might just drop everything and cause chaos on the highway! 🛣️ If an attacker were to exploit this oversight, they could manipulate the way HTTP2 handles certain requests, potentially leading to crashes or erratic application behavior. While no known exploits have been reported, it’s best to stay ahead of any potential issues!
Think of this vulnerability like a delivery truck that overloaded its cargo — at some point, the truck might just drop everything and cause chaos on the highway! 🛣️ This vulnerability stems from an incorrect HPack integer overflow check in the HTTP2 implementation of Qt, allowing an attacker to send crafted requests that could exploit the overflow.
If an attacker were to exploit this oversight, they could manipulate the way HTTP2 handles certain requests, potentially leading to crashes or erratic application behavior. While no known exploits have been reported, it’s best to stay ahead of any potential issues! To protect your applications, ensure you update Qt to the latest versions: 5.15.17 or 6.6.2 or later. Regularly review and audit your dependencies to catch any similar vulnerabilities! You've got this! By staying proactive, you’ll help keep your projects secure! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| debian/debian_linux | all versions | — |
| qt/qt | ≥ 5.7, < 5.15.17 | 5.15.17 |
| qt/qt | ≥ 6.0.0, < 6.2.11 | 6.2.11 |
| qt/qt | ≥ 6.3.0, < 6.5.4 | 6.5.4 |
| qt/qt | ≥ 6.6.0, < 6.6.2 | 6.6.2 |