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krisdigitx
Asked: 2011-02-02 04:19:21 +0800 CST

ssh segmentation fault

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i get segmentation fault when i try to ssh to a server, the ssh works in sudo mode but not at user mode.

these are the strace bits where the ssh breaks

open("/usr/include/pwd2.h", O_WRONLY|O_CREAT|O_APPEND|O_LARGEFILE, 0666) = -1 EACCES (Permission denied)
getpeername(3, {sa_family=AF_INET, sin_port=htons(222), sin_addr=inet_addr("xxx.xxx.xxx.xx")}, [16]) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++

can anyone give me ideas about the problem?

debian ssh

2 Answers

  1. Man, you've got rootkit, reinstall!. Your ssh binary is trying to write down every password its using to that file, also keep in mind that every password that you see there was compromised.

    • 2
  2. Best Answer

    can anyone give me ideas about the problem?

    Check packages:

    # debsums openssh-server
/usr/share/lintian/overrides/openssh-server                                   OK
/usr/share/man/man5/sshd_config.5.gz                                          OK
/usr/share/man/man8/sshd.8.gz                                                 OK
/usr/share/man/man8/sftp-server.8.gz                                          OK
/usr/lib/openssh/sftp-server                                                  OK
/usr/sbin/sshd                                                                OK

    Reinstall/upgrade openssh-server:

    sudo apt-get --reinstall install openssh-server

    Use gdb/valgrind to debug.

    • 0