Hi all,

I got the same buffer overflow.

These are my specs:

kernel: Linux 3.2.13-grsec-xxxx-grs-ipv6-64 #1 SMP Thu Mar 29 09:48:59 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
(Server in Ovh)
Cpu: 8cores Intel(R) Xeon(R) CPU W3530  @ 2.80GHz
RAM: 24GB

$ more /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

$ apt-cache show wput
Package: wput
Section: universe/web
Architecture: amd64
Version: 0.6.2-2build1


Here is the backtrace:
*** buffer overflow detected ***: wput terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7fe7f9899007]
/lib/x86_64-linux-gnu/libc.so.6(+0x107f00)[0x7fe7f9897f00]
/lib/x86_64-linux-gnu/libc.so.6(+0x107369)[0x7fe7f9897369]
/lib/x86_64-linux-gnu/libc.so.6(_IO_default_xsputn+0xdd)[0x7fe7f980bbcd]
/lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x98d)[0x7fe7f97d800d]
/lib/x86_64-linux-gnu/libc.so.6(__vsprintf_chk+0x94)[0x7fe7f9897404]
/lib/x86_64-linux-gnu/libc.so.6(__sprintf_chk+0x7d)[0x7fe7f989734d]
wput[0x409e68]
wput[0x40a296]
wput[0x4052c2]
wput[0x405cb8]
wput[0x40cc1f]
wput[0x402280]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fe7f97b176d]
wput[0x402781]
======= Memory map: ========
00400000-00415000 r-xp 00000000 08:01 3546159                            /usr/bin/wput
00614000-00615000 r--p 00014000 08:01 3546159                            /usr/bin/wput
00615000-00616000 rw-p 00015000 08:01 3546159                            /usr/bin/wput
00616000-00637000 rw-p 00000000 00:00 0                                  [heap]
7fe7f8c13000-7fe7f8c28000 r-xp 00000000 08:01 5243889                    /lib/x86_64-linux-gnu/libgcc_s.so.1
7fe7f8c28000-7fe7f8e27000 ---p 00015000 08:01 5243889                    /lib/x86_64-linux-gnu/libgcc_s.so.1
7fe7f8e27000-7fe7f8e28000 r--p 00014000 08:01 5243889                    /lib/x86_64-linux-gnu/libgcc_s.so.1
7fe7f8e28000-7fe7f8e29000 rw-p 00015000 08:01 5243889                    /lib/x86_64-linux-gnu/libgcc_s.so.1
7fe7f8e29000-7fe7f8e41000 r-xp 00000000 08:01 5243921                    /lib/x86_64-linux-gnu/libresolv-2.15.so
7fe7f8e41000-7fe7f9041000 ---p 00018000 08:01 5243921                    /lib/x86_64-linux-gnu/libresolv-2.15.so
7fe7f9041000-7fe7f9042000 r--p 00018000 08:01 5243921                    /lib/x86_64-linux-gnu/libresolv-2.15.so
7fe7f9042000-7fe7f9043000 rw-p 00019000 08:01 5243921                    /lib/x86_64-linux-gnu/libresolv-2.15.so
7fe7f9043000-7fe7f9045000 rw-p 00000000 00:00 0
7fe7f9045000-7fe7f904c000 r-xp 00000000 08:01 5243904                    /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fe7f904c000-7fe7f924b000 ---p 00007000 08:01 5243904                    /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fe7f924b000-7fe7f924c000 r--p 00006000 08:01 5243904                    /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fe7f924c000-7fe7f924d000 rw-p 00007000 08:01 5243904                    /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fe7f924d000-7fe7f9259000 r-xp 00000000 08:01 5243905                    /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fe7f9259000-7fe7f9458000 ---p 0000c000 08:01 5243905                    /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fe7f9458000-7fe7f9459000 r--p 0000b000 08:01 5243905                    /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fe7f9459000-7fe7f945a000 rw-p 0000c000 08:01 5243905                    /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fe7f945a000-7fe7f9790000 r--p 00000000 08:01 3539920                    /usr/lib/locale/locale-archive
7fe7f9790000-7fe7f9943000 r-xp 00000000 08:01 5243878                    /lib/x86_64-linux-gnu/libc-2.15.so
7fe7f9943000-7fe7f9b42000 ---p 001b3000 08:01 5243878                    /lib/x86_64-linux-gnu/libc-2.15.so
7fe7f9b42000-7fe7f9b46000 r--p 001b2000 08:01 5243878                    /lib/x86_64-linux-gnu/libc-2.15.so
7fe7f9b46000-7fe7f9b48000 rw-p 001b6000 08:01 5243878                    /lib/x86_64-linux-gnu/libc-2.15.so
7fe7f9b48000-7fe7f9b4d000 rw-p 00000000 00:00 0
7fe7f9b4d000-7fe7f9b6f000 r-xp 00000000 08:01 5243870                    /lib/x86_64-linux-gnu/ld-2.15.so
7fe7f9d60000-7fe7f9d63000 rw-p 00000000 00:00 0
7fe7f9d6b000-7fe7f9d6f000 rw-p 00000000 00:00 0
7fe7f9d6f000-7fe7f9d70000 r--p 00022000 08:01 5243870                    /lib/x86_64-linux-gnu/ld-2.15.so
7fe7f9d70000-7fe7f9d72000 rw-p 00023000 08:01 5243870                    /lib/x86_64-linux-gnu/ld-2.15.so
7fff00f24000-7fff00f45000 rw-p 00000000 00:00 0                          [stack]
7fff00fff000-7fff01000000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r--p 00000000 00:00 0                  [vsyscall]

Please ask me for more info about the issue. It is important because I use this command for copy important backups remotely.

Thank you very much in advance.