Last changed 29. Nov 1996
There is a problem reading shadow password files in the libc distributed with Unifix Linux 2.0. The function getspnam() returns the address of a buffer on the stack :-! This address is then possibly overwritten before the value is used, so that the password check will fail.
POP3D and maybe a few other shadow password reading programs reject users whose password comes from the local shadow password file. Users administered through NIS/YP are not affected.
This problem is only known to occur with POP3D. If you have a similar problem with another program, please send an email to firstname.lastname@example.org .
Install the new C library: get the patch http://www.unifix.de/support/patches/patch-126.96.36.199.cpio , and run (as root)
swinstall -s patch-188.8.131.52.cpio .
If you are not able to replace the C library, modify the failing program to copy the password after getspnam() returns.