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Article #2712

dbm from IDA Enhencement bombs, HELP !

#2712
From: Frank Elsner
Date: Wed, 27 Jan 1993 14:33
58 lines
3367 bytes
I've compiled  dbm  from the IDA Kit succesfully but when I try to generate
a database ... see what happens ...

bronto- /home/elsn4000/tmp<1> strace -t dbm load gen gen
15:26:38 open("/usr/lib/ld.so", RDONLY, 61020) = 3
15:26:38 read(3, "\81\3\1\b\0\0\80\0\0\0 \0\0\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0\0\0", 32) = 32
15:26:39 smmap(0, 40960, READ|EXEC, PRIVATE, 3, 0) = 0xf77e0000
15:26:39 smmap(0xf77e8000, 8192, READ|WRITE|EXEC, PRIVATE|FIXED, 3, 0x8000) = 0xf77e8000
15:26:39 open("/dev/zero", RDONLY, 7) = 4
15:26:39 getrlimit(STACK, {cur: 8388608, max: 402653184}) = 0
15:26:39 smmap(0xf7800000, 8192, READ|WRITE, PRIVATE|FIXED, 4, 0) = 0xf7800000
15:26:39 close(3) = 0
15:26:39 getuid() = 181 ([euid 181])
15:26:39 getgid() = 181 ([egid 181])
15:26:39 open("/etc/ld.so.cache", RDONLY, 0) = 3
15:26:39 fstat(3, [REG ino 4852 nlnks 1 ...]) = 0
15:26:39 smmap(0, 4096, READ, SHARED, 3, 0) = 0xf77c0000
15:26:39 close(3) = 0
15:26:39 open("/usr/lib/X11", RDONLY, 1010525) = 3
15:26:39 fstat(3, [DIR ino 61711 nlnks 12 ...]) = 0
15:26:39 smmap(0xf7802000, 8192, READ|WRITE, PRIVATE|FIXED, 4, 0) = 0xf7802000
15:26:40 getdents(3, {Total: 42 dents}, 8192) = 976
15:26:40 getdents(3, {Total: 0 dents}, 8192) = 0
15:26:40 close(3) = 0
15:26:40 open("/usr/lib/libc.so.1.7.2", RDONLY, 50550) = 3
15:26:40 read(3, "\81\3\1\b\0\7\0\0\0\0@\0\0\0\n\d0\0\0u\84\0\0\0 \0\0\0\0\0\0\0\0", 32) = 32
15:26:40 smmap(0, 477904, READ|EXEC, PRIVATE, 3, 0) = 0xf7730000
15:26:40 smmap(0xf77a0000, 16384, READ|WRITE|EXEC, PRIVATE|FIXED, 3, 0x70000) = 0xf77a0000
15:26:40 smmap(0xf77a4000, 2768, READ|WRITE|EXEC, PRIVATE|FIXED, 4, 0) = 0xf77a4000
15:26:40 close(3) = 0
15:26:40 open("/usr/lib/libdl.so.1.0", RDONLY, 50570) = 3
15:26:40 read(3, "\81\3\1\b\0\0 \0\0\0 \0\0\0\0\0\0\0\0\84\0\0\0 \0\0\0\0\0\0\0\0", 32) = 32
15:26:40 smmap(0, 16396, READ|EXEC, PRIVATE, 3, 0) = 0xf7710000
15:26:40 smmap(0xf7712000, 8192, READ|WRITE|EXEC, PRIVATE|FIXED, 3, 0x2000) = 0xf7712000
15:26:40 close(3) = 0
15:26:40 mprotect(0x2000, 16384, READ|WRITE|EXEC) = 0
15:26:40 mprotect(0x2000, 16384, READ|EXEC) = 0
15:26:40 close(4) = 0
15:26:40 getpagesize() = 0x1000
15:26:41 brk(0x63d0) = 0
15:26:41 brk(0x6ff8) = 0
15:26:41 brk(0x8ff8) = 0
15:26:41 open("gen.pag", RDWR|CREAT|TRUNC, 644) = 3
15:26:41 open("gen.dir", RDWR|CREAT|TRUNC, 644) = 4
15:26:41 fstat(4, [REG ino 99506 nlnks 1 ...]) = 0
15:26:41 flock(4, LOCK_EX) = 0
15:26:41 open("gen", RDONLY, 666) = 5
15:26:41 ioctl(5, TCGETA, 0xf7fff4b4) = -1 (Inappropriate ioctl for device)
15:26:41 fstat(5, [REG ino 99489 nlnks 1 ...]) = 0
15:26:41 brk(0xbff8) = 0
15:26:41 read(5, "abel@zrz.TU-Berlin.DE\ta2034000@f".., 8192) = 8192
 - [SIGSEGV]
 + [SIGSEGV]

The program was linked using -Bstatic.

Any help welcome,
Frank Elsner (TUBerlin Postmaster)
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From: elsn4000@bronto.zrz.tu-berlin.de (Frank Elsner)
Newsgroups: comp.mail.sendmail
Subject: dbm from IDA Enhencement bombs, HELP !
Date: 27 Jan 1993 14:33:50 GMT
Organization: TUBerlin/ZRZ
Lines: 58
Distribution: world
Message-ID: <1k66geINN7np@mailgzrz.TU-Berlin.DE>
NNTP-Posting-Host: bronto.zrz.tu-berlin.de