Re: Buffer overflow

Hi,

What are exactly your Linux distribution and version?

Does it crash on all queries, or on a certain query only?

Please try to run search.cgi from command line like this:

./search.cgi "query words"

where "query words" are the search words that make it crash.

Does it crash when started from command line?

If so, it would be nice to get a gdb backtrace.

Please do the following:

gdb search cgi
(gdb) run "query words"
(gdb) backtrace

Thanks.


On 03/19/2013 08:31 PM, Philippe DE ROCHAMBEAU wrote:
> Hello,
>
> When I type a word in the Search Form Input field and press Search!, I
> get a buffer overflow error.
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] *** buffer
> overflow detected ***: /var/www/cgi-bin/search.cgi terminated
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] =======
> Backtrace: =========
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x52dae5]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x52da7e]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x52d523]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x52d408]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x440c98]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x44d247]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x4171dd]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x404566]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x4b6056]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] [0x405201]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx] =======
> Memory map: ========
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 00400000-00685000 r-xp 00000000 fd:00 334904
> /var/www/cgi-bin/search.cgi
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 00885000-008e0000 rw-p 00285000 fd:00 334904
> /var/www/cgi-bin/search.cgi
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 008e0000-008ec000 rw-p 00000000 00:00 0
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 01ee0000-01f6d000 rw-p 00000000 00:00 0
> [heap]
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399c400000-399c420000 r-xp 00000000 fd:00 318247
>                        /lib64/ld-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399c420000-399c61f000 ---p 00020000 fd:00 318247
> /lib64/ld-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399c61f000-399c620000 r--p 0001f000 fd:00 318247
> /lib64/ld-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399c620000-399c621000 rw-p 00020000 fd:00 318247
> /lib64/ld-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399c621000-399c622000 rw-p 00000000 00:00 0
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399cc00000-399cd89000 r-xp 00000000 fd:00 318254
> /lib64/libc-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399cd89000-399cf89000 ---p 00189000 fd:00 318254
> /lib64/libc-2.12.so
>
> [Tue Mar 19 17:24:45 2013] [error] [client xxx.xxx.xxx.xxx]
> 399cf89000-399cf8d000 r--p 00189000 fd:00 318254
>
> Configuration: mnogosearch 3.3.13 on Linux 2.6.32
>
> Any help would be greatly appreciated.
>
> Philippe
>
> P In order to preserve the environment, please do not print this message
> unless it is necessary.
>
>
>
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