| Package | Affected versions | Patched versions |
|---|---|---|
| pidgin | = 2.10.0= 2.10.1= 2.10.2= 2.10.3= 2.10.4= 2.10.5= 2.10.6= 2.10.7= 2.10.8≤ 2.10.9 |
The (1) bundled GnuTLS SSL/TLS plugin and the (2) bundled OpenSSL SSL/TLS plugin in libpurple in Pidgin before 2.10.10 do not properly consider the Basic Constraints extension during verification of X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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