In case you need a server to reproduce the bug with, try connecting to uniapps.uni-rostock.de with arbitrary domain name, username and password.
I am rather sure that this server uses a cert signed by an itermediate CA (because they do it for other services such as HTTP as well.) I tried to verify using openssl's s_client tool: # openssl s_client -connect uniapps.uni-rostock.de:3389 […] Certificate chain 0 s:/C=DE/ST=Mecklenburg-Vorpommern/L=Rostock/O=Universitaet Rostock/OU=ITMZ/CN=rds1.uni-rostock.de i:/C=DE/O=Universitaet Rostock/OU=Rechenzentrum/CN=Uni Rostock CA - G02/emailAddress=c...@uni-rostock.de 1 s:/C=DE/O=Universitaet Rostock/OU=Rechenzentrum/CN=Uni Rostock CA - G02/emailAddress=c...@uni-rostock.de i:/C=DE/O=DFN-Verein/OU=DFN-PKI/CN=DFN-Verein PCA Global - G01 2 s:/C=DE/O=DFN-Verein/OU=DFN-PKI/CN=DFN-Verein PCA Global - G01 i:/C=DE/O=Deutsche Telekom AG/OU=T-TeleSec Trust Center/CN=Deutsche Telekom Root CA 2 […] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1116999 Title: xfreerdp crashed with SIGSEGV in X509_get_issuer_name() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/freerdp/+bug/1116999/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs