| Package | Affected versions | Patched versions |
|---|---|---|
| irssi | = 0.8.0= 0.8.1= 0.8.10= 0.8.11= 0.8.12= 0.8.13= 0.8.14= 0.8.2= 0.8.3= 0.8.4= 0.8.5= 0.8.6= 0.8.7= 0.8.8= 0.8.9≤ 0.8.15 |
Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.
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