plymouth-pretrigger.sh in dracut and udev, when running on Fedora 13 and 14, sets weak permissions for the /dev/systty device file, which allows remote authenticated users to read terminal data from tty0 for local users.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-4176
• https://bugzilla.redhat.com/show_bug.cgi?id=654489
• https://bugzilla.redhat.com/show_bug.cgi?id=654935
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051755.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051418.html
• http://secunia.com/advisories/42342
• http://secunia.com/advisories/42451
• http://www.securityfocus.com/bid/45046
• http://www.vupen.com/english/advisories/2010/3062
• http://www.vupen.com/english/advisories/2010/3110