The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name in the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade hexchat | Jul 30, 2024 | Apr 21, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Nov 19, 2014 |
| Ubuntu | — | Upgrade hexchatUpgrade xchat-gnome | Nov 19, 2024 | Apr 21, 2016 |
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