I might have observed the same bug, affecting libgnutls.so.26 or libcurl-gnutls.so.4 or the combination of both, and seems to be triggered by the remote side, crashing a zabbix monitoring system when connecting to a single server.
Program received signal SIGSEGV, Segmentation fault. gnutls_x509_crt_import (cert=0xb8c9bc30, data=0x0, format=GNUTLS_X509_FMT_DER) at x509.c:176 176 x509.c: No such file or directory. (gdb) bt #0 gnutls_x509_crt_import (cert=0xb8c9bc30, data=0x0, format=GNUTLS_X509_FMT_DER) at x509.c:176 #1 0xb6ea253a in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #2 0xb6ea3209 in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #3 0xb6ea3e18 in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #4 0xb6e6511c in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #5 0xb6e74328 in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #6 0xb6e87b7a in ?? () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #7 0xb6e888a0 in curl_multi_perform () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #8 0xb6e7f6fb in curl_easy_perform () from /usr/lib/i386-linux-gnu/libcurl-gnutls.so.4 #9 0xb76be6aa in process_httptests () #10 0xb76bca56 in main_httppoller_loop () #11 0xb76979a9 in MAIN_ZABBIX_ENTRY () #12 0xb76ef49b in daemon_start () #13 0xb7690abf in main () According to [1], calling the function with data=NULL seems forbidden. It seems, that [2] is a similar report for curl. The upstream patch seems to be announced in [3] as "gtls: fix NULL pointer dereference", date "Fixed in 7.37.0 - May 21 2014" [1] http://manned.org/gnutls_x509_crt_import/a0fb5c1f [2] http://curl.haxx.se/mail/lib-2014-04/0145.html [3] http://curl.haxx.se/changes.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1304004 Title: transmission-gtk crashed with SIGSEGV in gnutls_x509_crt_import() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/transmission/+bug/1304004/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs