Vulnerability Development mailing list archives
Regex or Progress? Whos fault?
From: KF <dotslash () snosoft com>
Date: Thu, 04 Apr 2002 07:10:22 -0500
I am just poking a some more progress binaries this weekend and I ran across this issue. Based on the gdb dumps I thought that something may be wrong with regex. Not sure though. libg++-2.7.2.8-9.src.rpm Said it was from redhat 5.2 on rpmfind.net but it is installed on my 7.2 box for some reason.
[root@ghetto dotslash]# cat /etc/redhat-release Red Hat Linux release 7.2 (Enigma) [root@ghetto dotslash]# rpm -qa | grep libg libg++-2.7.2.8-9 [root@ghetto bin]# gdb -q ./showcfg (gdb) r `perl -e 'print "A" x 9000'` Starting program: /home/dlc/bin/./showcfg `perl -e 'print "A" x 9000'` Error: Cannot open the configuration file Program received signal SIGSEGV, Segmentation fault. __libc_free (mem=0x41414141) at malloc.c:3136 3136 malloc.c: No such file or directory. in malloc.c (gdb) bt #0 __libc_free (mem=0x41414141) at malloc.c:3136#1 0x400584ee in Regex::~Regex (this=0x40078b98, __in_chrg=2) at Regex.cc:42 #2 0x400587d1 in global destructors keyed to Regex::Regex () at Regex.cc:149
#3 0x40057950 in __do_global_dtors_aux () from /usr/lib/libg++.so.2.7.2 #4 0x400770a5 in _fini () from /usr/lib/libg++.so.2.7.2 #5 0x4000de72 in _dl_fini () at eval.c:41 #6 0x400ed42b in exit (status=65535) at exit.c:54 #7 0x08073b78 in main () at eval.c:41#8 0x400d8507 in __libc_start_main (main=0x80739f0 <main>, argc=2, ubp_av=0xbfffd844, init=0x804beb0 <_init>, fini=0x808f2ec <_fini>, rtld_fini=0x4000dc14 <_dl_fini>, stack_end=0xbfffd83c) at ../sysdeps/generic/libc-start.c:129
heres the snippet from Regex.cc Regex::~Regex() { if (buf->buffer) free(buf->buffer); if (buf->fastmap) free(buf->fastmap); if (buf->translate) free (buf->translate); if (reg->start) free (reg->start); if (reg->end) free (reg->end); delete(buf); delete(reg); } -KF
Current thread:
- Regex or Progress? Whos fault? KF (Mar 23)
- Re: Regex or Progress? Whos fault? 3APA3A (Mar 25)