[Tiger-devel] Tiger-3.1 Buffer Overflow bug

[Steve G]

Hello,

Recently I ran across a bug in the 3.1 version of Tiger. It
has a program realpath.c that is crashing on my stack
smashing protection software. It has 2 issues. 1)
MAXPATHLEN
is 4096 by definition on Linux 2.4. The program has some
buffers that are on 1025 in size. They should be scaled off
of MAXPATHLEN instead of a magic number.

Also (2), the realpath function is in glibc, but with a
different argument count. This causes problems for libsafe.
The function should either be static or renamed to
my_realpath() to avoid problems.

I've attached an updated copy for your review.

I use Red Hat 9, and I also see all kinds of shell script
errors in check_accounts, has anyone else reported this?
Lines 136, 195, 317. (:-lt: unary operator expected).

Best Regards,
-Steve Grubb

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realpath.c
Description: realpath.c