xscreensaver authentication bypass

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authenticati...

perl getpwuid problem

Getpwuid call doesn't clode /etc/shadow, it leaves the possibility to access file descriptor after privelege are dropped...

Perl 5.6.0 (on Linux) getpwuid() leave /etc/shadow opened

I'm not sure how serious this issue is, but I think it may cause problems in some environments. The system is Linux, RedHat 7.0, Perl 5.6.0, glibc 2.2.4, latest updates. Recently I run 'lsof' on unprivileged Apache httpd process running modperl application and was pretty surprised to see...