I just dist-upgraded, and despite the fact that nagios-nrpe-plugin stayed at 3.0.1-3, it is even worse. It now segfaults in all the cases.
gdb seems to indicate the problem is in the crypto code (but many other programs use OpenSSL on this machine): Program received signal SIGILL, Illegal instruction. 0xb6e9ace8 in ?? () from /usr/lib/arm-linux-gnueabihf/libcrypto.so.1.0.2 (gdb) where #0 0xb6e9ace8 in ?? () from /usr/lib/arm-linux-gnueabihf/libcrypto.so.1.0.2 #1 0xb6e98670 in OPENSSL_cpuid_setup () from /usr/lib/arm-linux-gnueabihf/libcrypto.so.1.0.2 #2 0xb6fe2af4 in call_init (l=<optimized out>, argc=argc@entry=6, argv=argv@entry=0xbefffa24, env=env@entry=0xbefffa40) at dl-init.c:72 #3 0xb6fe2bce in call_init (env=<optimized out>, argv=<optimized out>, argc=<optimized out>, l=<optimized out>) at dl-init.c:30 #4 _dl_init (main_map=0xb6fff958, argc=6, argv=0xbefffa24, env=0xbefffa40) at dl-init.c:120 #5 0xb6fd7a44 in _dl_start_user () from /lib/ld-linux-armhf.so.3 Backtrace stopped: previous frame identical to this frame (corrupt stack?)